Array Substrate and Display Apparatus
20220342266 · 2022-10-27
Inventors
Cpc classification
H01L27/1248
ELECTRICITY
G02F1/13439
PHYSICS
G02F1/1337
PHYSICS
G02F1/136222
PHYSICS
G02F1/136209
PHYSICS
International classification
Abstract
Provided are an array substrate and a display apparatus. The array substrate comprises: a base substrate; a gate line on the base substrate; a first insulating layer covering the gate line; a data line on the first insulating layer; a second insulating layer covering the data line; a common electrode on the second insulating layer, the common electrode comprising a plurality of portions, wherein each portion comprises a plurality of strip-shaped electrodes, each strip shaped electrode comprising a first main body portion, a second main body portion, a first connecting portion and a second connecting portion, and the first main body portion comprising a first corner end portion; and a metal wire in the same layer as the gate line, wherein an orthographic projection of the first corner end portion on the base substrate exceeds an orthographic projection of the metal wire on the base substrate.
Claims
1. An array substrate, comprising: a base substrate; a gate line located on a side of the base substrate and extending along a first direction; a first insulating layer covering the gate line; a data line on a side of the first insulating layer away from the base substrate, the data line and the gate line defining a plurality of pixel areas; a second insulating layer covering the data line; a common electrode on a side of the second insulating layer away from the data line, wherein the common electrode comprises a plurality of portions corresponding to the plurality of pixel areas, each portion of the plurality of portions comprising a plurality of strip electrodes, a slit being provided between adjacent strip electrodes of the plurality of strip electrodes, each strip electrode of the plurality of strip electrodes comprising a first main body portion extending along a second direction, a second main body portion extending along a third direction, a first connecting portion extending along a fourth direction and a second connecting portion extending along a fifth direction, the first main body portion being connected to the first connecting portion, the second main body portion being connected to the second connecting portion, the first connecting portion being connected to the second connecting portion, the first connecting portion and the second connecting portion forming a first included angle, and the first main body portion comprising a first corner end; and a metal wire located in the same layer as the gate line and extending along the first direction, wherein an orthographic projection of the first corner end on the base substrate goes beyond an orthographic projection of the metal wire on the base substrate.
2. The array substrate according to claim 1, wherein a ratio of a width of the each strip electrode to a width of the slit ranges from 0.3 to 0.7.
3. The array substrate according to claim 2, wherein a range of the width Wi of the each strip electrodes is 2 microns≤W.sub.1<2.8 microns.
4. The array substrate according to claim wherein a range of the width W2 of the slit is 4 microns≤W.sub.2<5.8 microns.
5. The array substrate according to claim 2, wherein a range of a sum H.sub.1 of projection lengths of the first connecting portion and the second connecting portion on a direction perpendicular to the first direction is 3.9 microns≤H.sub.1<5.9 microns.
6. The array substrate according to claim 5, wherein an inner side of a portion where the first connecting portion is connected to the second connecting portion is provided with a concave pattern, and an outer side of the portion where the first connecting portion is connected to the second connecting portion is provided with a convex pattern.
7. The array substrate according to claim 6, wherein an area of the concave pattern is equal to an area of the convex pattern.
8. The array substrate according to claim 6, wherein a shape of the concave pattern is the same as a shape of the convex pattern.
9. The array substrate according to claim 1, further comprising: a gate electrode in the same layer as the gate line, wherein the gate electrode is electrically connected to the gate line, and the gate electrode is covered by the first insulating layer; an active layer and a pixel electrode both on a side of the first insulating layer away from the base substrate, wherein the active layer is isolated from the pixel electrode; and a first electrode and a second electrode both on a side of the active layer away from the first insulating layer, wherein the first electrode and the second electrode are electrically connected to the active layer, and the first electrode, the second electrode, the active layer and the pixel electrode are covered by the second insulating layer; wherein the second main body portion comprises a second corner end, and an orthographic projection of the second electrode on the base substrate covers at least a portion of an orthographic projection of the second corner end of a portion of the plurality of strip electrodes on the base substrate.
10. The array substrate according to claim 9, further comprising: a first orientation layer covering the common electrode; a liquid crystal layer on a side of the first orientation layer away from the common electrode; a second orientation layer on a side of the liquid crystal layer away from the first orientation layer; a black matrix layer on a side of the second orientation layer away from the liquid crystal layer, wherein an orthographic projection of the black matrix layer on the base substrate covers an orthographic projection of the first corner end and a portion of the first main body portion adjacent to the first corner end on the base substrate; and a color film layer covering the black matrix layer and the second orientation layer.
11. The array substrate according to claim 10, wherein a range of a length L.sub.0 of the portion of the first main body portion adjacent to the first corner end along the second direction is 0<L.sub.0≤2.5 microns.
12. The array substrate according to claim 1, wherein an angle of a second included angle formed by the first corner end and the first direction is 40° to 50°.
13. The array substrate according to claim 9, wherein an angle of a third included angle formed by the second corner end and the first direction is 40° to 50°.
14. A display device, comprising: the array substrate according to claim 1.
Description
BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS
[0019] The accompanying drawings which constitute part of this specification, illustrate the exemplary embodiments of the present disclosure, and together with this specification, serve to explain the principles of the present disclosure.
[0020] The present disclosure may be more explicitly understood from the following detailed description with reference to the accompanying drawings, in which:
[0021]
[0022]
[0023]
[0024]
[0025]
[0026]
[0027]
[0028] It should be understood that the dimensions of the various parts shown in the accompanying drawings are not drawn according to the actual scale. In addition, the same or similar reference signs are used to denote the same or similar components.
DETAILED DESCRIPTION
[0029] Various exemplary embodiments of the present disclosure will now be described in detail in conjunction with the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is in no way intended as a limitation to the present disclosure, its application or use. The present disclosure may be implemented in many different forms, which are not limited to the embodiments described herein. These embodiments are provided to make the present disclosure thorough and complete, and fully convey the scope of the present disclosure to those skilled in the art. It should be noticed that: relative arrangement of components and steps, material composition, numerical expressions, and numerical values set forth in these embodiments, unless specifically stated otherwise, should be explained as merely illustrative, and not as a limitation.
[0030] The use of the terms “first”, “second” and similar words in the present disclosure do not denote any order, quantity or importance, but are merely used to distinguish between different parts. A word such as “comprise”, “include”, or the like means that the element before the word covers the element(s) listed after the word without excluding the possibility of also covering other elements. The terms “up”, “down”, “left”, “right”, or the like are used only to represent a relative positional relationship, and the relative positional relationship may be changed correspondingly if the absolute position of the described object changes.
[0031] In the present disclosure, when it is described that a particular device is located between the first device and the second device, there may be an intermediate device between the particular device and the first device or the second device, and alternatively, there may be no intermediate device. When it is described that a particular device is connected to other devices, the particular device may be directly connected to said other devices without an intermediate device, and alternatively, may not be directly connected to said other devices but with an intermediate device.
[0032] All the terms (comprising technical and scientific terms) used in the present disclosure have the same meanings as understood by those skilled in the art of the present disclosure unless otherwise defined. It should also be understood that terms as defined in general dictionaries, unless explicitly defined herein, should be interpreted as having meanings that are consistent with their meanings in the context of the relevant art, and not to be interpreted in an idealized or extremely formalized sense.
[0033] Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, these techniques, methods, and apparatuses should be considered as part of this specification.
[0034]
[0035] As shown in
[0036] In view of this, the embodiments of the present disclosure provide an array substrate for a liquid crystal display screen, so as to reduce the adverse impact of the corner design of the fringe area of the pixel on the display effect.
[0037]
[0038] It should be noted that, in order to facilitate showing the main features of the embodiments of the present disclosure, the structures of all layers are not shown in the top views of the embodiments of the present disclosure (e.g.,
[0039] The structure of the array substrate according to some embodiments of the present disclosure will be described in detail below in conjunction with
[0040] As shown in
[0041] As shown in
[0042] As shown in
[0043] As shown in
[0044] As shown in
[0045] As shown in
[0046] As shown in
[0047] As shown in
[0048] It should be noted here that, “goes beyond” herein means that the orthographic projection of the metal wire on the base substrate does not completely cover the orthographic projection of the first corner end on the base substrate. As shown in
[0049] In some embodiments, as shown in
[0050] In some embodiments, as shown in
[0051] So far, an array substrate for a liquid crystal display screen according to some embodiments of the present disclosure is provided. In the above illustrations, the array substrate comprises: a base substrate, agate line, a first insulating layer, a data line, a second insulating layer, a common electrode, and a metal wire. The common electrode comprises a plurality of portions corresponding to a plurality of pixel areas. Each portion comprises a plurality of strip electrodes. A slit is provided between adjacent strip electrodes of the plurality of strip electrodes. Each strip electrode comprises a first main body portion extending along the second direction, a second main body portion extending along a third direction, a first connecting portion extending along a fourth direction, and a second connecting portion extending along a fifth direction. The first main body portion is connected to the first connecting portion, the second main body portion is connected to the second connecting portion, and the first connecting portion is connected to the second connecting portion. The first connecting portion and the second connecting portion form a first included angle. The first main body portion comprises a first corner end. The orthographic projection of the first corner end on the base substrate goes beyond the orthographic projection of the metal wire on the base substrate. In this way, the uneven dark area caused by the first corner end can be away from the pixel area as much as possible. For example, the uneven dark area can enter into the area covered by a black matrix as much as possible. Therefore, in the above-described embodiments, it is possible to reduce the adverse effect of the corner design of the fringe area of the pixel on the display effect, and improve the display effect of the liquid crystal display.
[0052] In addition, the inventors of the present disclosure have also found that, since the pixel structure of the 1P2D architecture is used in the related art, a corner area is formed in the middle area of the pixel (as shown at the position B in
[0053] In view of this, the inventors of the present disclosure provide that, in some embodiments of the present disclosure, a ratio of a width of the strip electrode 130 to a width of the slit 135 ranges from 0.3 to 0.7. For example, the width ratio is 0.4 or 0.5 and the like. In the case of such width ratio range, it is possible to increase the number of slits, so that the overall light efficiency (i.e., the light transmittance) of the array substrate can be improved, thereby reducing the adverse effect of the above-mentioned dark area on the display effect, and further improving the display effect.
[0054] In some embodiments, as shown in
[0055] In some embodiments, as shown in
[0056] For example, in some embodiments, the width of the strip electrode 130 is designed to be 2.0 microns, and the width of the slits 135 is designed to be 5.2 microns. Compared with the number of slits of each pixel in the related art, in such design, one slit can be added, so that the overall light efficiency of the liquid crystal display can be improved. In addition, the dimension H.sub.1 at the middle corner of the strip electrode is adjusted from 5.9 microns in the related art to 3.9 microns, so that the light efficiency of the pixel at the middle corner can be improved. In addition, the corner (for example, the first corner) at the fringe of the pixel is stretched outwards by 2.5 microns, so that the light efficiency of the pixel at the fringe position can be improved.
[0057] For another example, in other embodiments, the width of the strip electrode 130 is designed to be 2.0 microns, and the width of the slit 135 is designed to be 4.4 microns. Compared with the number of slits of each pixel in the related art, in such design, two slits can be added, so that the overall light efficiency of the liquid crystal display can be improved. In addition, the dimension H.sub.1 at the middle corner of the strip electrode is adjusted from 5.9 microns in the related art to 4.8 microns, so that the light efficiency of the pixel at the middle corner can be improved. In addition, the corner (for example, the first corner) at the fringe of the pixel is stretched outwards by 2.5 microns, so that the light efficiency of the pixel at the fringe position can be improved.
[0058] For still another example, in other embodiments, the width of the strip electrode 130 is designed to be 2.0 microns, and the width of the slit 135 is designed to be 4.0 microns. Compared with the number of slits of each pixel in the related art, in such design, two slits can be added, so that the overall light efficiency of the liquid crystal display can be improved. In addition, the dimension H.sub.1 of the strip electrode at the middle corner is adjusted from 5.9 microns in the related art to 3.9 microns, so that the light efficiency of the pixel at the middle corner can be improved. In addition, the corner (for example, the first corner) at the fringe of the pixel is stretched outwards by 2.5 microns and the inclined angle is optimized, so that the light efficiency of the pixel at the fringe position can be improved.
[0059] In some embodiments, as shown in
[0060] In some embodiments, as shown in
[0061] Returning to
[0062] In some embodiments, as shown in
[0063] In some embodiments, as shown in
[0064] In some embodiments, as shown in
[0065] In some embodiments, as shown in
[0066] In some embodiments, as shown in
[0067] In some embodiments, as shown in
[0068] In some embodiments, as shown in
[0069] In some embodiments, as shown in
[0070] In some embodiments, as shown in
[0071] In some embodiments of the present disclosure, a display device is also provided. The display device comprises the array substrate as described previously. For example, the display device may be any product or member having a display function, such as a display panel, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, or the like.
[0072] Hereto, various embodiments of the present disclosure have been described in detail. Some details well known in the art are not described in order to avoid obscuring the concept of the present disclosure. According to the above description, those skilled in the art would fully understand how to implement the technical solutions disclosed here.
[0073] Although some specific embodiments of the present disclosure have been described in detail by way of examples, those skilled in the art should understand that the above examples are only for the purpose of illustration but not for limiting the scope of the present disclosure. It should be understood by those skilled in the art that modifications to the above-described embodiments or equivalently substitution of part of the technical features may be made without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.