CN114879392A - Display panel and electronic device - Google Patents
Display panel and electronic device Download PDFInfo
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- CN114879392A CN114879392A CN202210388276.6A CN202210388276A CN114879392A CN 114879392 A CN114879392 A CN 114879392A CN 202210388276 A CN202210388276 A CN 202210388276A CN 114879392 A CN114879392 A CN 114879392A
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- 230000003287 optical effect Effects 0.000 claims description 10
- 230000003247 decreasing effect Effects 0.000 claims description 6
- 238000002834 transmittance Methods 0.000 abstract description 10
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133371—Cells with varying thickness of the liquid crystal layer
Abstract
The application discloses a display panel and electronic equipment, wherein the display panel is provided with a first display area and a second display area and comprises a first substrate, a second substrate and a liquid crystal layer, the second substrate is arranged opposite to the first substrate, and the liquid crystal layer is arranged between the first substrate and the second substrate; the partial liquid crystal layer positioned in the first display area and the partial liquid crystal layer positioned in the second display area have different thicknesses, so that when the first display area is seen in front and the second display area is seen in side, color distortion of the second display area is avoided. The partial liquid crystal layer of the first display area and the partial liquid crystal layer of the second display area are set to be different in thickness, so that the transmittance of the second display area is consistent with that of the first display area, the problems of color distortion of the second display area and large picture display difference between the second display area and the first display area are avoided, and the watching experience of a user is improved.
Description
Technical Field
The application relates to the technical field of display, in particular to a display panel and electronic equipment.
Background
As the technology of the liquid crystal display panel is mature day by day, the number of large-sized display screens is increased, and the demand of users is also increased. In the related art, when a large-size display screen is viewed, when different positions of the screen are viewed, the display pictures of the screen are different in position or angle of a user, so that the problems of large picture display difference, color distortion and the like occur, and the viewing feeling of the user is influenced.
Disclosure of Invention
In view of the above, the present application provides a display panel and an electronic device to solve the problems of large difference between the image display of the middle display area and the image display of the two side display areas of the large-size display screen and color distortion in the prior art.
In order to solve the above technical problem, a first technical solution provided by the present application is: the display panel is provided with a first display area and a second display area and comprises a first substrate, a second substrate and a liquid crystal layer, wherein the second substrate is arranged opposite to the first substrate, and the liquid crystal layer is arranged between the first substrate and the second substrate; the liquid crystal layer is located in a part of the first display area and the liquid crystal layer is located in a part of the second display area, and the liquid crystal layer has different thicknesses, so that when the second display area is viewed from the side by viewing the first display area from the front, color distortion of the second display area is avoided.
The first display area is a middle display area of the display panel, and the second display area comprises a left display area and a right display area which are positioned on two sides of the middle display area; the cell thickness of the display panel in the first display area is larger than that of the display panel in the second display area, so that the thickness of the liquid crystal layer in the first display area is larger than that in the second display area.
Wherein the display panel has a box thickness in the left display region and a box thickness in the right display region that each decrease in gradient in a direction away from the first display region; or the box thickness of the display panel in the left display area and the box thickness of the display panel in the right display area are continuously reduced along the direction far away from the first display area.
Wherein a portion of the functional layer of the first substrate located in the second display region is raised or thickened with respect to a portion located in the first display region; and/or the part of the functional layer of the second substrate located in the second display area is raised or thickened relative to the part located in the first display area.
Wherein the thickness of the portion of the planarization layer of the second substrate located in the first display region is smaller than the thickness of the portion located in the second display region.
The first substrate comprises a first substrate base plate and a plurality of first functional layers arranged on one side, close to the liquid crystal layer, of the first substrate base plate; the surface of one side, close to the liquid crystal layer, of the first substrate base plate is a curved surface or a folded surface; and/or the second substrate comprises a second substrate base plate and a plurality of second functional layers arranged on one side, close to the liquid crystal layer, of the second substrate base plate; the surface of one side, close to the liquid crystal layer, of the second substrate base plate is a curved surface or a folded surface.
The surface of one side, close to the liquid crystal layer, of the first substrate base plate is a plane, and the surface of one side, close to the liquid crystal layer, of the second substrate base plate is a curved surface or a folded surface; the second substrate further comprises a flexible substrate arranged on the surface, close to the liquid crystal layer, of the second substrate, and the plurality of second functional layers comprise a driving circuit layer and a pixel electrode, wherein the driving circuit layer and the pixel electrode are arranged on the surface, close to the liquid crystal layer, of the flexible substrate.
The display panel further comprises an optical filter, and the optical filter is arranged in the first display area; or the display panel further comprises a driving adjusting module, and the driving adjusting module is used for reducing the display brightness of the first display area and/or improving the display brightness of the second display area.
The first display area is further provided with the optical filter, and the optical filter is arranged on one side, far away from the liquid crystal layer, of the second substrate.
In order to solve the above technical problem, a second technical solution provided by the present application is: there is provided an electronic device comprising the display panel of any one of the above, and a processor.
The beneficial effect of this application: different from the prior art, the display panel provided by the application is provided with a first display area and a second display area, and comprises a first substrate, a second substrate and a liquid crystal layer, wherein the second substrate is arranged opposite to the first substrate; the liquid crystal layer is arranged between the first substrate and the second substrate; the partial liquid crystal layer positioned in the first display area and the partial liquid crystal layer positioned in the second display area have different thicknesses, so that when the first display area is seen in front and the second display area is seen in side, color distortion of the second display area is avoided. When the first display area is viewed from the front and the second display area is viewed from the side, the transmittance of the liquid crystal layer of the first display area is different from that of the liquid crystal layer of the second display area, so that the display picture is different, and the picture color of the second display area is distorted. This application sets up to different thickness through the part liquid crystal layer with first display area and the part liquid crystal layer of second display area for when looking sideways at first display area in the front view and looking aside the second display area, the box thickness of second display area equals with first display area's box thickness, thereby make the transmissivity of second display area and first display area's transmissivity tend to unanimously, thereby avoid the problem that the picture display difference of second display area's colour distortion and second display area and first display area is big, improve user's viewing experience.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of a prior art display panel;
fig. 2 is a schematic structural diagram of a display panel according to a first embodiment of the present application;
fig. 3 is a schematic structural diagram of a display panel according to a first embodiment of the present application;
fig. 4 is a schematic structural diagram of a display panel according to a second embodiment of the present application;
fig. 5 is a schematic structural diagram of a display panel according to a third embodiment of the present application;
fig. 6 is a schematic structural diagram of a display panel according to a third embodiment of the present application;
fig. 7 is a schematic structural diagram of a display panel according to a fourth embodiment of the present application;
fig. 8 is a schematic structural diagram of a display panel according to a fifth embodiment of the present application;
fig. 9 is a schematic structural diagram of a display panel according to a fifth embodiment of the present application;
fig. 10 is a schematic structural diagram of a display panel according to a sixth embodiment of the present application;
fig. 11 is a schematic structural diagram of a display panel according to a seventh embodiment of the present application;
fig. 12 is a schematic structural diagram of a display panel according to an eighth embodiment of the present application;
fig. 13 is a schematic structural diagram of a display panel according to a ninth embodiment of the present application;
fig. 14 is a schematic structural diagram of an electronic device provided in the present application.
Description of reference numerals:
a-a first display region, B-a second display region, B1-a left display region, B2-a right display region, d 1-a front view cell thickness, d 2-a side view cell thickness, d 21-a side view cell thickness of a left sub-display region, d 22-a side view cell thickness of a right sub-display region, 10-a color filter substrate, 102-a common electrode, 11-a first substrate, 12-a first functional layer, 20-an array substrate, 21-a second substrate, 22-a second functional layer, 221-a planarization layer, 222-a driving circuit layer, 23-a flexible substrate, 30/53-a liquid crystal layer, 40-an optical filter, 60-a driving adjustment module, 70-an eye, 50/100-a display panel, 200-an electronic device, 201-a processor, 51-a first substrate, 52-second substrate.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms "first", "second", and the like in this application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. All directional indications (such as up, down, left, right, front, and rear … …) in the embodiments of the present application are only used to explain the relative positional relationship between the components, the movement, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is changed accordingly. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a display panel in the prior art.
For a large-size display screen, a user stands in front of a middle display area to see the screen normally, but the two display areas belong to side viewing angles, so that the color display of the two display areas is distorted due to the difference of the viewing angles. Regardless of the display screen, the larger the screen size, the closer the distance to the screen, the higher the screen distortion ratio, resulting in a white appearance at the side view angle. This is because the transmittance ratio of RGB changes in a side view, which causes color distortion.
As shown in fig. 1, a conventional display panel 50 includes a first substrate 51, a second substrate 52, and a liquid crystal layer 53. The transmittance of the liquid crystal display panel 50 is generally proportional to the product of the cell thickness (d) and the refractive index Δ n of the liquid crystal (i.e., Δ nd). The prior art display panel 50 has a uniform cell thickness. The two-sided display regions are side-looking when the user is looking straight at the middle display region, where the light rays in the middle display region reach the liquid crystal layer 53 through which the user's eyes 70 pass by a distance equal to the cell thickness d1, and the light rays in the two-sided display regions reach the user's eyes 70 through the liquid crystal layer 53 by a distance equal to the cell thickness d 2. d2 is larger than d1, which causes the difference between the transmittance of the picture displayed in the two display areas and the middle display area, and the difference of the box thickness causes the difference of the picture display to be infinitely enlarged due to the difference of the transmittance of different RGB color resistances, so that the difference of the human sense, namely the picture distortion, affects the user's perception. In order to solve the above problems, the present application provides a novel display panel and an electronic device using the display panel.
Referring to fig. 2 and fig. 3, fig. 2 is a schematic structural diagram of a display panel according to a first embodiment of the present application, and fig. 3 is another schematic structural diagram of a display panel according to the first embodiment of the present application. For ease of description, this application shows only a portion of the functionality.
As shown in fig. 2-3, a display panel 100 is provided in a first embodiment of the present application. The display panel 100 is used for displaying an image, and the display panel 100 has a first display region a and a second display region B. Specifically, the display panel 100 includes a first substrate, a second substrate disposed opposite to the first substrate, and a liquid crystal layer 30; the liquid crystal layer 30 is disposed between the first substrate and the second substrate. In this embodiment, the first substrate is specifically a color filter substrate 10, and the second substrate is specifically an array substrate 20. The array substrate 20 is disposed opposite to the color filter substrate 10, and the liquid crystal layer 30 is disposed between the color filter substrate 10 and the array substrate 20. The display panel 100 may be a TFT-LCD display, and may specifically be a mainstream display such as a Twisted Nematic (TN) type display, a Vertical Alignment (VA) type display, an In-Plane-Switching (IPS) type display, and the like.
Generally, the color filter substrate 10 is used for providing color, and includes a first substrate 11 and a plurality of first functional layers 12 disposed on a side of the first substrate 11 close to the liquid crystal layer 30. The first functional layer 12 includes a common electrode 102, a first alignment layer (not shown), a filter layer (not shown), and a black matrix (not shown). The array substrate 20 includes a second substrate 21 and a plurality of second functional layers 22 disposed on a side of the second substrate 21 close to the liquid crystal layer 30, and the second functional layers 22 include a planarization layer 221, a driving circuit layer 222, a pixel electrode (not shown), and a second alignment layer (not shown). The driving circuit layer 222 includes a plurality of thin film transistors, a plurality of scan lines, and a plurality of data lines. It is understood that the color filter substrate 10 further includes a first polarizing layer (not shown) disposed on a side of the first substrate 11 away from the liquid crystal layer 30. The array substrate 20 further includes a second polarizing layer (not shown) disposed on a side of the second substrate 21 away from the liquid crystal layer 30.
The liquid crystal layer 30 includes a plurality of liquid crystal cells, and is encapsulated between the array substrate 20 and the color filter substrate 10.
Specifically, in some embodiments, the first display area a is a middle display area of the display panel 100, and the second display area B includes a left display area B1 and a right display area B2 located at both sides of the middle display area. The front-view first display area a and the side-view second display area B may be specifically viewing angles facing the display panel 100 with respect to a user, or may be distinguished by positions of the user, that is, when the user is in a middle display area of the display panel 100, the first display area a is front-view, and the left display area B1 and the right display area B2 of the second display area B are side-view. It can be understood that whether the user views the first display area a and the second display area B from a front view or a side view may vary depending on the position of the user. When the user approaches the display panel 100 to view, the user is usually located at the middle position, i.e. the first display area a, and therefore, for convenience of understanding and distinction, the front view first display area a and the side view second display area B are taken as an example for explanation in the present application.
For convenience of description, the present application defines: when the user looks at the first display region a from the front and the second display region B from the side, the distance through which the light rays of the first display region a reach the liquid crystal layer 30 to be passed by the user's eyes 70 is the front cell thickness d1, and the distance through which the light rays of the second display region B reach the user's eyes 70 to be passed by the liquid crystal layer 30 is the side cell thickness d 2.
The box thickness of the display panel 100 is the distance between the color filter substrate 10 and the array substrate 20. Since the liquid crystal layer 30 is disposed between the color filter substrate 10 and the array substrate 20, the cell thickness of the display panel 100 represents the thickness of the liquid crystal layer 30. It can be understood that, when the thicknesses of the color filter substrate 10 and the array substrate 20 in the first display area a and the second display area B are the same, since the transmittance of the liquid crystal display panel is generally in a proportional relationship with the product of the cell thickness d and the refractive index Δ n of the liquid crystal (i.e. Δ nd), when the first display area a is viewed from the front and the second display area B is viewed from the side, the front box thickness d1 is inevitably smaller than the side box thickness d2, so that the picture transmittance of the second display area B is different from that of the first display area a, and the picture display distortion and the color distortion of the second display area B are caused by the change of the transmittance ratio of RGB.
Therefore, in order to make the screen display of the second display region B consistent and the color of the first display region a normal, the side view box thickness d2 of the second display region B needs to be adjusted so that the side view box thickness d2 is substantially equal to the front view box thickness d1 of the first display region a.
In the first embodiment, the cell thickness of the first display region a is greater than that of the second display region B, and thus a portion of the liquid crystal layer 30 located in the first display region a and a portion of the liquid crystal layer 30 located in the second display region B have different thicknesses, so that the side-view cell thickness d2 of the second display region B is substantially equal to the front-view cell thickness d1 of the first display region a when the second display region B is viewed from the front while viewing the first display region a, and thus color distortion of the second display region B can be prevented. It is understood that since the user is habitually located at the middle position of the display panel 100 when viewing the display panel 100 at a close distance, the two second display areas B are located at the left and right sides of the first display area a, respectively. Since the difference between the side view box thickness d2 of the second display region B and the front view box thickness d1 of the first display region a is small when the user views the display panel 100 from a distance, the structure does not affect the effect of viewing the display panel 100 from a distance.
In this embodiment, the box thickness of the second display region B may be reduced by raising or thickening the portion of the first functional layer 12 of the color filter substrate 10 located in the second display region B relative to the portion located in the first display region a; the cell thickness of the second display region B may also be reduced in such a manner that a portion of the second functional layer 22 of the array substrate 20 located in the second display region B is stepped up or thickened with respect to a portion located in the first display region a.
Specifically, as shown in fig. 2 to fig. 3, the thickening of the first functional layer 12 of the color filter substrate 10 and/or the thickening of the second functional layer 22 of the array substrate 20 may specifically be: the first functional layer 12 of the color filter substrate 10 and/or the second functional layer 22 of the array substrate 20 are thickened on the side close to the liquid crystal layer 30, so that the side view cell thickness d2 of the second display region B is reduced and tends to be consistent with the front view cell thickness d1 of the first display region a. The step-up of the first functional layer 12 of the color filter substrate 10 and the second functional layer 22 of the array substrate 20 may specifically be: the first functional layer 12 of the color filter substrate 10 and/or the second functional layer 22 of the array substrate 20 are raised on the side away from the liquid crystal layer 30, so that the side view box thickness d2 of the first functional layer 12 of the color filter substrate 10 and/or the second functional layer 22 of the array substrate 20 on the side close to the liquid crystal layer 30 is reduced and tends to be consistent with the front view box thickness d1 of the first display region a. It can be understood that in this embodiment, one or more of the first functional layer 12 of the color filter substrate 10 and the second functional layer 22 of the array substrate 20 may be thickened or enhanced, but in order to improve the product manufacturing efficiency, it is preferable to thicken or enhance one of the color filter substrate 10 and the second functional layer 22 of the array substrate 20, so as to reduce the manufacturing processes and improve the work efficiency.
As shown in fig. 2, in one structure, the thickness of the portion of the planarization layer 221 of the array substrate 20 located in the first display region a is less than the thickness of the portion located in the second display region B.
Specifically, the portion of the planarization layer 221 located in the second display region B is thickened to pad up the pixel electrode and the second alignment layer located in the second display region B, thereby reducing the side view cell thickness d2 of the second display region B. It is understood that, since the pixel electrode and the second alignment layer are formed on the planarization layer 221, the second alignment layer and the pixel electrode are closer to the liquid crystal layer 30 than the planarization layer 221, and when the planarization layer 221 located in the second display region B is thickened, the pixel electrode and the second alignment layer are lifted up, so that the side view cell thickness d2 of the second display region B is reduced, thereby enabling the side view cell thickness d2 of the second display region B to be aligned with the front view cell thickness d1 of the first display region a.
When the flat layer 221 of the second display area B is thickened, that is, the side view box thickness d2 of the left display area B1 and the side view box thickness d2 of the right display area B2 can both reach the same thickness as the front view box thickness d1 of the first display area a, so that the difference between the picture display of the first display area a and the picture display of the left display area B1 and the picture display of the right display area B2 is reduced, and the adjustment precision of the display color is consistent.
As shown in fig. 3, in another structure, the thickness of the portion of the common electrode 102 of the color filter substrate 10 located in the first display area a is smaller than that of the portion located in the second display area B, so that the thickness of the first alignment layer of the color filter substrate 10 located in the second display area B is greater than that of the first alignment layer located in the first display area a.
Referring to fig. 4, fig. 4 is a schematic structural diagram of a display panel according to a second embodiment of the present application.
The display panel provided in the second embodiment of the present application has substantially the same structure as the display panel provided in the first embodiment of the present application, except that in the present embodiment, the cell thickness of the display panel 100 in the left display region B1 and the cell thickness in the right display region B2 are both reduced in a gradient in a direction away from the first display region a.
It is understood that when the first display area a and the second display area B of the display panel 100 are viewed from the front, the second display area B may have a slight difference of the side view box thickness d2 at different positions, and the left display area B1 and the right display area B2 may be further divided for improving the display effect at each specific position. That is, the left display region B1 includes a plurality of left sub-display regions arranged in sequence in a direction away from the first display region a to the left, the display panel 100 has a uniform cell thickness in each left sub-display region, and the cell thicknesses of the display panel 100 in the plurality of left sub-display regions decrease in a gradient in a direction away from the first display region a to the left, so that, when the user is positioned at the first display region a to look at the left display region B1, the side-view cell thicknesses d21 of the plurality of left sub-display regions are substantially the same and substantially the same as the front-view cell thicknesses d1 of the first display region a. The right display area B2 includes a plurality of right sub-display areas sequentially arranged along a direction away from the first display area a to the right, the display panel 100 has a box thickness in each right sub-display area, and the box thicknesses of the display panel 100 in the plurality of right sub-display areas are gradually decreased along the direction away from the first display area a to the right. Thus, when the user is positioned in the first display region A to view the right sub-display region B2 from the side, the side view box thickness d22 of the plurality of right sub-display regions is substantially the same and substantially the same as the front view box thickness d1 of the first display region A. For the large-sized display panel 100, the closer the distance from the display panel 100, the larger the difference between the screen display of the middle display area and the screen display of the two side display areas, and therefore, the side view box thickness d21 of the left sub-display area and the side view box thickness d22 of the right sub-display area are gradually decreased relative to the front view box thickness d1 of the front view display panel 100. In the present embodiment, the box thicknesses of the left sub-display areas are set to decrease in a gradient manner in the direction away from the first display area a to the left, so that the picture display difference in the left sub-display area is smaller and the picture distortion rate is also lower. The box thicknesses of the right sub-display areas are set to decrease in a gradient mode along the direction which is far away from the first display area A to the right, so that the picture display difference in the right sub-display areas is smaller, and the picture distortion rate is lower.
Referring to fig. 4, in particular, in the present embodiment, by setting the portion of the flat layer 221 of the array substrate 20 located in the second display region B to be multi-step-shaped, it is achieved that the side view cell thickness d2 of the second display region B is reduced in gradient in a direction away from the first display region a, while the cell thickness in the first display region a is uniformly set.
Referring to fig. 5 and fig. 6, fig. 5 is a schematic structural diagram of a display panel according to a third embodiment of the present application, and fig. 6 is another schematic structural diagram of the display panel according to the third embodiment of the present application.
The display panel 100 provided in the third embodiment of the present application has substantially the same structure as the display panel 100 provided in the first embodiment of the present application, except that in the third embodiment, the display panel 100 continuously decreases in the direction away from the first display area a in both the left display area B1 and the right display area B2.
It is understood that the box thickness of the right display area B2 and the box thickness of the left display area B1 have the same decreasing trend, and are uniformly decreased in a direction away from the first display area a. In this embodiment, the adjustment accuracy of the display color for each position in the left display area B1 and the right display area B2 is higher and the display difference from the first display area a is smaller, compared to the second embodiment.
In the present embodiment, the surface of the first substrate 11 on the side close to the liquid crystal layer 30 is provided as a folding surface; and/or by providing the surface of the second substrate 21 on the side closer to the liquid crystal layer 30 as a folding surface so that the cell thickness of the display panel 100 in the left display region B1 and the cell thickness in the right display region B2 each decrease continuously in a direction away from the first display region a, the cell thickness in the first display region a is set uniformly.
Specifically, at least one of the surfaces of the first substrate 11 and the second substrate 21 on the side close to the liquid crystal layer 30 is provided as a folded surface. As shown in fig. 6, the surface of the first substrate 11 close to the liquid crystal layer 30 may be a folded surface as required; alternatively, as shown in fig. 5, the surface of the second substrate 21 on the side close to the liquid crystal layer 30 is provided as a folded surface, or both the surface of the first substrate 11 on the side close to the liquid crystal layer 30 and the surface of the second substrate 21 on the side close to the liquid crystal layer 30 are provided as folded surfaces. When the surface of the first substrate 11 close to the liquid crystal layer 30 is a folded surface, the surface of the second substrate 21 close to the liquid crystal layer 30 may be a plane; or when the surface of the second substrate 21 close to the liquid crystal layer 30 is a folded surface, the surface of the first substrate 11 close to the liquid crystal layer 30 may be a flat surface. When one of the surface of the first substrate 11 close to the liquid crystal layer 30 and the surface of the second substrate 21 close to the liquid crystal layer 30 is a folded surface and the other is a flat surface, the substrate with the flat surface close to the liquid crystal layer 30 has the advantages of easy manufacture, and saved processes and materials. When the surface of the first substrate 11 close to the liquid crystal layer 30 and the surface of the second substrate 21 close to the liquid crystal layer 30 are both folded surfaces, although the process and manufacturing difficulty increases, the difference between the picture display of the first display area a of the display panel 100 and the picture display of the left display area B1 and the picture display of the right display area B2 is smaller, and the distortion ratio is lower. It can be understood that when the surface of the first substrate 11 close to the liquid crystal layer 30 is a folded surface; and/or the surface of the second substrate 21 close to the liquid crystal layer 30 is a folded surface, the functional layers disposed on the first substrate 11 and the second substrate 21 may also change with the surface shape of the first substrate 11 and/or the second substrate 21 to form a folded surface, such as the first functional layer 12 and the second functional layer 22 shown in fig. 5 and 6.
The folding surfaces in the present embodiment refer to: in the first display area a, the first substrate 11 is a plane, in the left display area B1 and the right display area B2, the first substrate 11 is an inclined plane, that is, the longitudinal cross section of the left display area B1 and the right display area B2 is an inclined plane or a curved plane which increases in a direction away from the first display area a, and the plane of the first substrate 11 in the first display area a is a continuous plane with the inclined planes in the left display area B1 and the right display area B2, so that other functional layers can be formed on the surface of the first substrate 11 close to the liquid crystal layer 30. The second substrate 21 and the first substrate 11 are the same in principle, and are not described herein again.
Referring to fig. 7, fig. 7 is a schematic structural diagram of a display panel according to a fourth embodiment of the present application.
The display panel 100 provided in the fourth embodiment of the present application has substantially the same structure as the display panel 100 provided in the third embodiment of the present application, except that in the fourth embodiment, the array substrate 20 may further include a flexible substrate 23 disposed on a surface of the second substrate 21 close to the liquid crystal layer 30, and the second functional layer 22 is disposed on a surface of the flexible substrate 23 close to the liquid crystal layer 30. It will be appreciated that the present application also contemplates providing a flexible substrate between the first substrate base plate 11 and the first functional layer 12.
Since the surface of the second substrate 21 close to the liquid crystal layer 30 is a folded surface, it is inconvenient to prepare various functional layers by processes such as thin film and photolithography. Therefore, in this embodiment, various functional layers, for example, the second functional layer 22, are first disposed on the flexible substrate 23, and then the flexible substrate 23 on which the second functional layer 22 is disposed is transferred to the surface of the second substrate 21 close to the liquid crystal layer 30.
The flexible substrate 23 is made of a flexible material, such as: polystyrene, epoxy, acrylate, Polyimide (PI), etc., so that the flexible substrate 23 can be easily bent into various shapes.
Referring to fig. 8 and 9, fig. 8 is a schematic structural diagram of a display panel according to a fifth embodiment of the present application, and fig. 9 is another schematic structural diagram of the display panel according to the fifth embodiment of the present application.
The display panel 100 provided in the fifth embodiment of the present application has substantially the same structure as the display panel 100 provided in the third embodiment of the present application, and the difference is that the surface of the first substrate 11 close to the liquid crystal layer 30 is a curved surface; and/or the surface of the second substrate 21 on the side close to the liquid crystal layer 30 is a curved surface, not a folded surface.
It is understood that when the first display area a and the side-viewing second display area B of the display panel 100 are viewed from the front, different positions of the first display area a may be viewed from the side due to the certain width of the first display area a, i.e. there is also a slight difference in the side-viewing box thickness d 2. In order to improve the display effect at each specific position, in the present embodiment, the cell thickness of the display panel 100 in the first display region a is also varied. Specifically, the cell thickness of the entire display panel 100 gradually decreases in the direction from the middle position to the left and right sides.
Specifically, the curved surface may be an arc surface, that is, a surface of at least one of the first substrate 11 and the second substrate 21 on a side close to the liquid crystal layer 30 is set to be an arc surface. As shown in fig. 8, the surface of the first substrate 11 close to the liquid crystal layer 30 may be an arc surface as required; or as shown in fig. 9, the surface of the second substrate 21 close to the liquid crystal layer 30 is an arc surface, or both the surface of the first substrate 11 close to the liquid crystal layer 30 and the surface of the second substrate 21 close to the liquid crystal layer 30 are arc surfaces. As shown in fig. 8 to 9, when the surface of the first substrate 11 on the side close to the liquid crystal layer 30 is an arc surface, the surface of the second substrate 21 on the side close to the liquid crystal layer 30 may be a plane; or when the surface of the second substrate 21 on the side close to the liquid crystal layer 30 is an arc surface, the surface of the first substrate 11 on the side close to the liquid crystal layer 30 may be a plane. When one of the surface of the first substrate 11 close to the liquid crystal layer 30 and the surface of the second substrate 21 close to the liquid crystal layer 30 is an arc surface, and the other is a plane, the substrate with the surface close to the liquid crystal layer 30 being a plane has the advantages of easy manufacture, and saved working procedures and materials. When the surface of the first substrate 11 on the side close to the liquid crystal layer 30 and the surface of the second substrate 21 on the side close to the liquid crystal layer 30 are both arc surfaces, although the process and manufacturing difficulty increases, the difference between the picture display of the first display area a of the display panel 100 and the picture display of the left display area B1 and the right display area B2 is smaller, and the distortion ratio is lower. The three cambered surface setting modes can be specifically selected according to needs, and the method is not limited in the application.
It should be noted that the arc surface in this embodiment refers to: in the first display region a, the left display region B1 and the right display region B2, the surface of the first substrate 11 on the side close to the liquid crystal layer 30 or the surface of the second substrate 21 on the side close to the liquid crystal layer 30 is a continuous arc, as shown in fig. 8 to 9.
Referring to fig. 10, fig. 10 is a schematic structural diagram of a display panel according to a sixth embodiment of the present application.
The display panel 100 provided in the sixth embodiment of the present application has substantially the same structure as the display panel 100 provided in the fifth embodiment of the present application, except that the array substrate 20 further includes a flexible substrate 23 disposed on a surface of the second substrate 21 close to the liquid crystal layer 30, and the second functional layer 22 is disposed on a surface of the flexible substrate 23 close to the liquid crystal layer 30.
In addition, the present inventors have found in the process of solving the above technical problems that the cell thickness of the second display region B is made smaller than that of the first display region a after the left display region B1 and the right display region B2 are adjusted. Therefore, when the user looks at the second display area B and the first display area a respectively, the user can feel that the screen of the second display area B is obviously dark, thereby affecting the viewing experience of the user. In order to solve the problem, the present application further proposes the following.
Referring to fig. 11, fig. 11 is a schematic structural diagram of a display panel according to a seventh embodiment of the present application.
The display panel 100 according to the seventh embodiment of the present application has substantially the same structure as the display panel 100 according to the fifth embodiment of the present application, except that the surface of the first substrate 11 on the side close to the liquid crystal layer 30 is a flat surface in the first display area a, curved surfaces in the left display area B1 and the right display area B2, and the surface of the first substrate 11 on the side close to the liquid crystal layer 30 forms a continuous surface with the curved surfaces in the left display area B1 and the right display area B2 in the plane of the first display area a. Alternatively, the surface of the second substrate 21 on the side close to the liquid crystal layer 30 may be a flat surface in the first display region a, an arc surface in the left display region B1 and the right display region B2, and the surface of the second substrate 21 on the side close to the liquid crystal layer 30 may form a continuous surface with the arc surface in the left display region B1 and the right display region B2 in the plane of the first display region a.
Referring to fig. 12, fig. 12 is a schematic structural diagram of a display panel according to an eighth embodiment of the present application.
The display panel 100 provided in the eighth embodiment of the present application has a structure substantially the same as that of the display panel 100 provided in the first embodiment of the present application, except that the display panel 100 further includes a filter 40, and the filter 40 is disposed in the first display region a.
Specifically, in the eighth embodiment, the filter 40 is disposed in the first display area a to reduce the brightness of the first display area a, so that the brightness of the first display area a is consistent with that of the second display area B when the second display area B is viewed from the front and the first display area a is viewed from the front, thereby further improving the overall brightness uniformity of the display panel 100 while improving the problems of picture distortion and color cast of the second display area B. Specifically, the optical filter 40 may be disposed on a side of the array substrate 20 away from the liquid crystal layer 30, or may be disposed on a side of the color filter substrate 10 away from the liquid crystal layer 30, so as to reduce the brightness of the first display region a. Note that, if the optical filter 40 is disposed between the color filter substrate 10 and the array substrate 20, the box thickness of the first display region a becomes smaller due to the optical filter 40, so that the box thickness of the second display region B needs to be made smaller. Therefore, the filter 40 is preferably disposed on the side of the array substrate 20 away from the liquid crystal layer 30.
Referring to fig. 13, fig. 13 is a schematic structural diagram of a display panel according to a ninth embodiment of the present application.
The display panel 100 provided in the ninth embodiment of the present application has substantially the same structure as the display panel 100 provided in the first embodiment of the present application, and the difference is that the display panel 100 further includes a driving adjustment module 60, and the driving adjustment module 60 is configured to reduce the display brightness of the first display area a and/or increase the display brightness of the second display area B.
Specifically, the driving adjustment module 60 may reduce the display luminance of the first display region a and/or increase the display luminance of the second display region B by adjusting at least one of a driving voltage, a driving time, and a driving efficiency of the first display region a and/or the second display region B.
It can be understood that, for the purpose of achieving the display brightness of the first display region a consistent with the display brightness of the second display region B, in practical operation, only at least one of the voltage, the driving time and the driving efficiency of the first display region a may be adjusted to reduce the display brightness of the first display region a, such as: reducing voltage supply to the first display area A, and reducing driving time and/or driving efficiency of the first display area A; or only adjusting at least one of the voltage, the driving time and the driving efficiency of the second display region B to improve the display brightness of the second display region B, such as: increasing voltage supply to the second display region B, increasing driving time and/or driving efficiency of the second display region B; or, at least one of the voltage, the driving time, and the driving efficiency of the first display region a may be adjusted, and at least one of the voltage, the driving time, and the driving efficiency of the second display region B may be adjusted, such as: the voltage supply to the first display area A is reduced, and the driving time and/or the driving efficiency of the first display area A are/is reduced, and the voltage supply to the second display area B is increased, and the driving time and/or the driving efficiency of the second display area B are/is increased, so that the display brightness of the first display area A is consistent with the display brightness of the second display area B. The three adjustment modes can be selected according to specific needs, and the application is not limited to this.
The display panel is provided with a first display area and a second display area and comprises a first substrate, a second substrate and a liquid crystal layer, wherein the second substrate is arranged opposite to the first substrate, and the liquid crystal layer is arranged between the first substrate and the second substrate; the partial liquid crystal layer positioned in the first display area and the partial liquid crystal layer positioned in the second display area have different thicknesses, so that when the first display area is seen in front and the second display area is seen in side, color distortion of the second display area is avoided. When the first display area is viewed from the front and the second display area is viewed from the side, the transmittance of the liquid crystal layer of the first display area is different from that of the liquid crystal layer of the second display area, so that the display picture is different, and the picture color of the second display area is distorted. This application sets up to different thickness through the part liquid crystal layer with first display area and the part liquid crystal layer of second display area for when looking sideways at first display area in the front view and looking aside the second display area, the box thickness of second display area equals with first display area's box thickness, thereby make the transmissivity of second display area and first display area's transmissivity tend to unanimously, thereby avoid the problem that the picture display difference of second display area's colour distortion and second display area and first display area is big, improve user's viewing experience.
Referring to fig. 14, fig. 14 is a schematic structural diagram of an electronic device provided in the present application.
The present application further provides an electronic device 200 comprising the display panel 100 according to any of the above, and a processor 201. The structure of the display panel 100 can refer to the foregoing, and is not described herein again.
The processor 201 is a central processing unit of the electronic device 200, and is configured to control display, communication, image acquisition, image processing, and the like of the electronic device 200.
Specifically, the electronic device 200 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, and the like, which is not limited in this application.
The electronic device 200 may also include one or more of the following components: memory, power components, processing components, multimedia components, audio components, interfaces for input/output (I/O), sensor components, and communication components.
The above description is only for the purpose of illustrating embodiments of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application or are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.
Claims (10)
1. A display panel having a first display region and a second display region, comprising:
a first substrate;
a second substrate disposed opposite to the first substrate;
the liquid crystal layer is arranged between the first substrate and the second substrate;
wherein a portion of the liquid crystal layer located in the first display region and a portion of the liquid crystal layer located in the second display region have different thicknesses so as to avoid color distortion of the second display region when the second display region is viewed from the front while viewing the first display region.
2. The display panel according to claim 1, wherein the first display region is a middle display region of the display panel, and the second display region includes a left display region and a right display region on both sides of the middle display region; the cell thickness of the display panel in the first display area is larger than that of the display panel in the second display area, so that the thickness of the liquid crystal layer in the first display area is larger than that in the second display area.
3. The display panel according to claim 2, wherein the display panel has a box thickness in the left display area and a box thickness in the right display area each decreasing in a gradient in a direction away from the first display region; or
The display panel has a box thickness in the left display region and a box thickness in the right display region both continuously decreasing in a direction away from the first display region.
4. The display panel according to claim 2, wherein a portion of the functional layer of the first substrate located in the second display region is raised or thickened with respect to a portion located in the first display region; and/or
The portion of the functional layer of the second substrate located in the second display region is raised or thickened with respect to the portion located in the first display region.
5. The display panel according to claim 4, wherein a thickness of a portion of the planarization layer of the second substrate located in the first display region is smaller than a thickness of a portion located in the second display region.
6. The display panel according to claim 2, wherein the first substrate includes a first substrate base and a plurality of first functional layers provided on a side of the first substrate base adjacent to the liquid crystal layer; the surface of one side, close to the liquid crystal layer, of the first substrate base plate is a curved surface or a folded surface; and/or
The second substrate comprises a second substrate base plate and a plurality of second functional layers arranged on one side, close to the liquid crystal layer, of the second substrate base plate; the surface of one side, close to the liquid crystal layer, of the second substrate base plate is a curved surface or a folded surface.
7. The display panel according to claim 6, wherein a surface of the first substrate closer to the liquid crystal layer is a flat surface, and a surface of the second substrate closer to the liquid crystal layer is a curved surface or a folded surface; the second substrate further comprises a flexible substrate arranged on the surface, close to the liquid crystal layer, of the second substrate, and the plurality of second functional layers comprise a driving circuit layer and a pixel electrode, wherein the driving circuit layer and the pixel electrode are arranged on the surface, close to the liquid crystal layer, of the flexible substrate.
8. The display panel according to claim 1, further comprising a filter disposed in the first display region; or
The display panel further comprises a driving adjusting module, and the driving adjusting module is used for reducing the display brightness of the first display area and/or improving the display brightness of the second display area.
9. The display panel according to claim 8, wherein the optical filter is further disposed in the first display region, and the optical filter is disposed on a side of the second substrate away from the liquid crystal layer.
10. An electronic device, characterized in that the electronic device comprises a display panel according to any one of claims 1-9, and a processor.
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| CN202210388276.6A CN114879392B (en) | 2022-04-13 | 2022-04-13 | Display panel and electronic equipment |
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| US20110279745A1 (en) * | 2009-01-28 | 2011-11-17 | Sharp Kabushiki Kaisha | Liquid crystal display panel |
| CN202330949U (en) * | 2011-12-05 | 2012-07-11 | 京东方科技集团股份有限公司 | Liquid crystal display panel |
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