The present invention relates to the field of display technology, particularly to the manufacturing of display devices, and more particularly to an array display panel and a display device.
At present, in order to pursue a narrow frame of a display screen, a method of placing a gate driver on an array (GOA) in an active area (AA) can be adopted to reduce an area of a non-display area.
However, due to the extremely low light transmission of GOA, placing GOA in the AA will cause certain pixels to have lower aperture ratios than other pixels, resulting in lower uniformity of the screen brightness of the display panel.
Therefore, it is necessary to provide a display panel and a display device that can improve the uniformity of the screen brightness of the display panel.
An object of the present invention is to provide a display panel and a display device. Problems of low brightness uniformity of an image of the display panel is solved by disposing a first sub-pixel located above a driving circuit to meet small difference between an aperture ratio of the first sub-pixel and an aperture ratio of the second sub-pixel, which makes difference between the brightness of the picture above driving circuits and the brightness of the picture above other areas where no driving circuits are formed within a predetermined range.
An embodiment of the invention provides a display panel, composed of a display area and a non-display area, wherein the display panel comprises a circuit layer, a pixel layer disposed over the circuit layer, and a liquid crystal disposed over the pixel layer;
wherein the pixel layer comprises a plurality of first regions and a plurality of second regions, and the first regions are used to form a first sub-pixel, the second regions are used to form a second sub-pixel, and the second sub-pixel comprises a first pixel portion and a second pixel portion, and the first sub-pixel comprises a third pixel portion;
wherein the liquid crystal layer comprises a plurality of liquid crystal molecules, wherein an ability of light to pass through the plurality of liquid crystal molecules over the first pixel portion is greater than an ability of light to pass through the plurality of liquid crystal molecules over the second pixel portion, and an ability of light to pass through the plurality of liquid crystal molecules over the third pixel portion is greater than the ability of light to pass through the plurality of liquid crystal molecules over the first pixel portion when the display panel is operating; and
wherein the circuit layer comprises a plurality of driving circuits, and the plurality of driving circuits are disposed in the display area, and the driving circuits are disposed opposite to the first regions, so that difference between a brightness of an image above the first regions and a brightness of an image above the second regions is within a predetermined range.
In one embodiment, the first sub-pixel further comprises a fourth pixel portion, and the third pixel portion and the fourth pixel portion are disposed adjacently.
In one embodiment, a projection of the driving circuits over the pixel layer overlaps or does not overlap with the first sub-pixel.
In one embodiment, the driving circuit is disposed at an arbitrary position directly below the third pixel portion, or a part of the driving circuit is disposed at an arbitrary position directly below the third pixel portion when the projection of the driving circuit over the pixel layer overlaps the first sub-pixel and the first sub-pixel comprises the third pixel portion.
In one embodiment, the driving circuit is disposed at any position directly below at least one of the third pixel portion and the fourth pixel portion, or a portion of the driving circuit is disposed at any position directly below at least one of the third pixel portion and the fourth pixel portion when the projection of the driving circuit over the pixel layer overlaps the first sub-pixel and the first sub-pixel comprises the third pixel portion and the fourth pixel portion.
In one embodiment, the driving circuits are disposed directly below any one side of the third pixel portion when the projection of the driving circuits over the pixel layer does not overlap with the first sub-pixel and the first sub-pixel comprises the third pixel.
In one embodiment, the driving circuits are disposed directly below a region between the third pixel portion and the fourth pixel portion, or the driving circuits are disposed below either side of at least one of the third pixel portion and the fourth pixel portion when the projection of the driving circuits over the pixel layer does not overlap with the first sub-pixel and the first sub-pixel comprises the third pixel and the fourth pixel portion.
In one embodiment, the driving circuits comprise a plurality of driving portions, and the plurality of driving portions are arranged in parallel and a distance between two adjacent driving portions is the same.
In one embodiment, the circuit layer further comprises a plurality of thin film transistor circuits, and the thin film transistor circuits are disposed opposite to the first regions and the second regions;
wherein the thin film transistor circuits are disposed directly below a region between the first pixel portion and the second pixel portion;
wherein the thin film transistor circuits are disposed directly below any one side of the third pixel portion when the first sub-pixel comprises the third pixel portion; and
the thin film transistor circuits are disposed directly below a region between the third pixel portion and the fourth pixel portion, or the thin film transistor circuit is disposed directly under either side of at least one of the third pixel portion and the fourth pixel portion when the first sub-pixel comprises the third pixel portion and the fourth pixel portion.
An embodiment of the present invention provides a display panel, composed of a display area and a non-display area, wherein the display panel comprises a circuit layer, a pixel layer disposed over the circuit layer, and a liquid crystal disposed over the pixel layer;
wherein the pixel layer comprises a plurality of first regions and a plurality of second regions, and the first regions are used to form a first sub-pixel, the second regions are used to form a second sub-pixel, and the second sub-pixel comprises a first pixel portion and a second pixel portion, and the first sub-pixel comprises a third pixel portion;
wherein the liquid crystal layer comprises a plurality of liquid crystal molecules, wherein an ability of light to pass through the plurality of liquid crystal molecules over the first pixel portion is greater than an ability of light to pass through the plurality of liquid crystal molecules over the second pixel portion, and an ability of light to pass through the plurality of liquid crystal molecules over the third pixel portion is greater than the ability of light to pass through the plurality of liquid crystal molecules over the first pixel portion when the display panel is operating;
wherein the circuit layer comprises a plurality of driving circuits, and the plurality of driving circuits are disposed in the display area, and the driving circuits are disposed opposite to the first regions, so that difference between a brightness of an image above the first regions and a brightness of an image above the second regions is within a predetermined range; and
wherein the projection of the driving circuit on the pixel layer overlaps or does not overlap with the first sub-pixel.
In one embodiment, the driving circuits are disposed at an arbitrary position directly below the third pixel portion, or a part of the driving circuits are disposed at a position directly below any position of the third pixel portion.
In one embodiment, the driving circuits are disposed directly below any one side of the third pixel portion when the first sub-pixel comprises the third pixel portion.
In one embodiment, the driving circuits comprise a plurality of driving portions, and the plurality of driving portions are arranged in parallel, and a distance between two adjacent driving portions is the same.
In one embodiment, the circuit layer further comprises a plurality of thin film transistor circuits, and the thin film transistor circuits are disposed opposite to the first region and the second region;
wherein the thin film transistor circuits are disposed directly below a region between the first pixel portion and the second pixel portion;
wherein the thin film transistor circuits are disposed directly below any one side of the third pixel portion when the first sub-pixel comprises the third pixel portion; and
the thin film transistor circuits are disposed directly below a region between the third pixel portion and the fourth pixel portion, or the thin film transistor circuits are disposed directly under either side of at least one of the third pixel portion and the fourth pixel portion when the first sub-pixel comprises the third pixel portion and the fourth pixel portion.
An embodiment of the present invention further provides a display device, wherein the display device comprises a display panel composed of a display area and a non-display area, wherein the display panel comprises a circuit layer and a pixel layer provided over the circuit layer and a liquid crystal layer disposed over the pixel layer;
wherein the pixel layer comprises a plurality of first regions and a plurality of second regions, and the first regions are used to form a first sub-pixel, the second regions are used to form a second sub-pixel, and the second sub-pixel comprises a first pixel portion and a second pixel portion, and the first sub-pixel comprises a third pixel portion;
wherein the liquid crystal layer comprises a plurality of liquid crystal molecules, wherein an ability of light to pass through the plurality of liquid crystal molecules over the first pixel portion is greater than an ability of light to pass through the plurality of liquid crystal molecules over the second pixel portion, and an ability of light to pass through the plurality of liquid crystal molecules over the third pixel portion is greater than the ability of light to pass through the plurality of liquid crystal molecules over the first pixel portion when the display panel is operating; and
wherein the circuit layer comprises a plurality of driving circuits, and the plurality of driving circuits are disposed in the display area, and the driving circuits are disposed opposite to the first regions, so that difference between a brightness of an image above the first regions and a brightness of an image above the second regions is within a predetermined range.
In one embodiment, the first sub-pixel further comprises a fourth pixel portion, and the third pixel portion and the fourth pixel portion are disposed adjacently.
In one embodiment, the projection of the driving circuit over the pixel layer overlaps or does not overlap the first sub-pixel.
In one embodiment, the driving circuits are disposed at an arbitrary position directly below the third pixel portion, or a part of the driving circuit is disposed at an arbitrary position directly below the third pixel portion when the projection of the driving circuits over the pixel layer overlaps the first sub-pixel and the first sub-pixel comprises the third pixel portion.
In one embodiment, the driving circuits are disposed at any position directly below at least one of the third pixel portion and the fourth pixel portion, or a portion of the driving circuits is disposed at any position directly below at least one of the third pixel portion and the fourth pixel portion when the projection of the driving circuit over the pixel layer overlaps the first sub-pixel and the first sub-pixel comprises the third pixel portion and the fourth pixel portion.
In one embodiment, the driving circuit is provided directly below any one side of the third pixel portion when the projection of the driving circuits on the pixel layer does not overlap the first sub-pixel and the first sub-pixel comprises the third pixel portion.
In one embodiment, the driving circuits are disposed directly below a region between the third pixel portion and the fourth pixel portion, or the driving circuits are disposed below either side of at least one of the third pixel portion and the fourth pixel portion when the projection of the driving circuit over the pixel layer does not overlap with the first sub-pixel and the first sub-pixel comprises the third pixel and the fourth pixel portion.
In one embodiment, the driving circuits comprise a plurality of driving portions, and the plurality of driving portions are arranged in parallel and a distance between two adjacent driving portions is the same.
The invention provides a display panel and a display device. The display panel is composed of a display area and a non-display area and comprises a circuit layer and a pixel layer provided over the circuit layer. The pixel layer comprises a plurality of first regions used to form a first sub-pixel, and a plurality of second regions used to form a second sub-pixel. The second sub-pixel comprises a first pixel portion and a second pixel portion, and the first sub-pixel comprises a third pixel portion. M1, M2, and M3 are respectively the ability of light to pass through liquid crystal molecules over the first pixel portion, the second pixel portion, and the third pixel portion, and M3≥M1>M2. The circuit layer comprises a plurality of driving circuits disposed in the display area, and the driving circuits are disposed opposite to the first area. In the present invention, problems of low brightness uniformity of an image of the display panel is solved by disposing a first sub-pixel located above a driving circuit to meet small difference between an aperture ratio of the first sub-pixel and an aperture ratio of the second sub-pixel, which makes difference between the brightness of the picture above driving circuits and the brightness of the picture above other areas where no driving circuits are formed within a predetermined range.
To detailly explain the technical schemes of the embodiments or existing techniques, drawings that are used to illustrate the embodiments or existing techniques are provided. Apparently, the illustrated embodiments are just a part of those of the present disclosure. It is easy for any person having ordinary skill in the art to obtain other drawings without labor for inventiveness.
In the following, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work fall into the protection scope of the present invention.
In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms “upper side” and “lower side” are based on the orientations or positional relationships shown in the drawings, where “upper side” is only a surface at above the object, it can refer to directly above, obliquely above, and the upper surface, as long as it lies above the level of the object in the drawing. “horizontal” and “longitudinal” also refer to all directions on the same horizontal plane based on the placement form of the drawing. “directly below” in this article indicates the vertical relationship in the vertical direction, and is not limited to the vertical projection position where one is located in the middle of the other, the above orientation or positional relationship. It is only for the convenience of describing the present invention and simplifying the description and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
It should be noted that the term “predetermined range” is a range predetermined in advance, and this predetermined range can be deduced according to a better result.
In addition, it should be noted that the drawings only provide structures and steps that are closely related to the present invention, and some details that have little to do with the invention are omitted. The purpose is to simplify the drawings and make the invention clearer than clear in practice, the device and/or method is exactly the same as the drawings and is not a limitation of the device and method in practice.
The present invention provides a display panel comprising, but not limited to, the embodiments shown in
In one embodiment, as shown in
It can be understood that the display panel 00 further comprises a liquid crystal layer, and the liquid crystal layer is disposed above the pixel layer 200. The liquid crystal layer comprises a plurality of liquid crystal molecules. Particularly, when the display panel 00 is in operation, an ability of light to pass through liquid crystal molecules over the first pixel portion 2021 is greater than an ability of light to pass through liquid crystal molecules over the second pixel portion 2022, and an ability of light to pass the liquid crystal molecules over the third pixel portion 2011 is greater than or equal to the ability of light to pass through the liquid crystal molecules over the first pixel portion 2021. Furthermore, difference between an image brightness above the third regions 03 and an image brightness above the second regions 02 can be within a predetermined range by setting an area ratio of the third pixel portion 2011 in the first region 03, and an area ratio of the first pixel portion 2021 and the second pixel portion 2022 in the second area 02. Furthermore, the “predetermined range” should be a smaller value, which indicates that image brightness above the first region 03 and image brightness above the second region 02 tends to be uniform.
Among them, “the ability of light to pass through the liquid crystal molecules over the third pixel portion 2011 is greater than or equal to the ability of the light to pass through the liquid crystal molecules over the first pixel portion 2021” may be realized through making a voltage finally transmitted to the third pixel portion 2011 greater than or equal to an voltage finally transmitted to the first pixel portion 2021.
It can be understood that light is emitted from a backlight of the display panel 00, and light sequentially passes through the circuit layer 100, the pixel layer 200, the liquid crystal layer, the film layer above the liquid crystal layer, and an outermost packaging film layer of the display panel 00 to finally present a sub-corresponding picture above the first region 03 and the second region 02. Therefore, “difference between the image brightness above the first region 03 and the image brightness above the second region 02 is within a predetermined range” should be understood as the image brightness above a certain region is proportional to an amount of the light finally penetrates the outermost package film layer corresponding to the certain region.
In one embodiment, the first region 03 and the second region 04 in the pixel layer 200 may be disposed separately, or the first region 03 may be continuously disposed first, and then the second region 04 may be disposed continuously. It can be understood that the arrangement of the driving circuit 101 should be compatible with the division of the first region 03 and the second region 04 to ensure that the corresponding region of the driving circuit 101 in the pixel layer 200 is disposed with the first sub-pixel 201.
In one embodiment, as shown in
In one embodiment, as shown in
In addition, the first pixel portion 2021 is electrically connected with the drain/source of the first thin film transistor 1023, and the second pixel portion 2022 is electrically connected with the drain/source of the second thin film transistor 1026. It can be understood that when the display panel 00 is in operation, a discharge path is formed between the third thin film transistor 1029 and the second common electrode 06, resulting a voltage of the source/drain of the second thin film transistor 1026 is lower than a voltage of the source/drain of the first thin film transistor 1023, so the voltage of the first pixel portion 2021 is greater than the voltage of the second pixel portion 2022, such that the ability of light to pass through the liquid crystal molecules over the first pixel portion 2021 is greater than the ability of light to pass through the liquid crystal molecules over the second pixel portion 2022.
It can be understood that in addition to adopting the manner shown in
In one embodiment, the projection of the driving circuit 101 over the pixel layer 200 overlaps or does not overlap with the first sub-pixel 201. Specific examples may include but are not limited to the following embodiments.
It should be noted that the effective light transmitting portion of the second sub-pixel 202 is the corresponding first pixel portion 2021 and the entire region of the corresponding second pixel portion 2022.
In one embodiment, when the first sub-pixel 201 comprises only the third pixel portion 2011, the ability of light to pass through the liquid crystal molecules over the third pixel portion 2011 equals the ability of the light to transmit through the liquid crystal molecules over the first pixel portion 2021. As shown in
In one embodiment, when the first sub-pixel 201 comprises only the third pixel portion 2011 and the ability of light to pass through the liquid crystal molecules on the third pixel portion 2011 is greater than the ability of light to pass through the liquid crystal molecules over the first pixel portion 2021, as shown in
It can be understood that the size of the third pixel portion 2011 in each of the first sub-pixels 201, the size of the first pixel portion 2021 in each of the second sub-pixels 202, and the size of the second pixel portion 2022, the ability of light to pass through liquid crystal molecules above the third pixel portion 2011 in each of the first sub-pixels 201, the ability of light to pass through the liquid crystal molecules above the first pixel portion 2021 in each of the second sub-pixels 202, and the ability of light to pass through the liquid crystal molecules above each of the second pixel portions 2022 should be comprehensively considered in order to achieve “the image brightness above the first region 03 and the image brightness of the second area 02 tends to be the same” as a benchmark.
In one embodiment, as shown in
In one embodiment, when the first sub-pixel 201 comprises the third pixel portion 2011 and the fourth pixel portion2012 and if the ability of light to pass through liquid crystal molecules over the third pixel portion 2011 is equal to the ability of the light to pass through the liquid crystal molecules over the first pixel portion 2021, as shown in
Furthermore, when the projection of the driving circuit 101 over the pixel layer 200 overlaps the first sub-pixel 201, as shown in
When the projection of the driving circuit 101 over the pixel layer 200 does not overlap with the first sub-pixel 201, as shown in
In one embodiment, as shown in
In one embodiment, when the first sub-pixel 201 comprises only the third pixel portion 2011, as shown in
In one embodiment, when the first sub-pixel 201 comprises the third pixel portion 2011 and the fourth pixel portion 2012, as shown in
In one embodiment, the driving methods of the first sub-pixel 201 and the second sub-pixel 202 in the present invention comprise, but are not limited to, a 1G1D (1 Gate & 1 Data) driving method, and an HG2D (Half Gate & 2 Data driving method).), a Tri-Gate (Three Gate) drive method, a DLS (Data Line Sharing) drive method.
In one embodiment, the formation process of the first sub-pixel 201 and the second sub-pixel 202 in the present invention may comprise, but is not limited to, MVA (Multi-domain Vertical Alignment), PSA (Patterned Sustained) Alignment, i.e. polymer stable alignment), UV2A (Ultra Violet Vertical Alignment, i.e. ultraviolet vertical alignment).
In one embodiment, the color filter substrate in the present invention may be disposed opposite to the pixel layer or may be disposed in the same layer as the circuit layer.
The invention also provides a display device, which comprises but is not limited to the display panel in the above implementation.
The structures of the display panel and the display device comprising the display panel provided by the embodiments of the present invention have been described in detail above.
In this specification, specific examples are used to explain the principles and implementation of the present invention. The descriptions of the above embodiments are only used to help understand the technical solution of the present invention and its core ideas; those skilled in the art should understand: The technical solutions described in the foregoing embodiments may be modified, or some technical features thereof may be equivalently replaced; and these modifications or replacements do not depart from the scope of the technical solutions of the embodiments of the present invention.
Number | Date | Country | Kind |
---|---|---|---|
201911268783.0 | Dec 2019 | CN | national |
Filing Document | Filing Date | Country | Kind |
---|---|---|---|
PCT/CN2019/127064 | 12/20/2019 | WO | 00 |