CN112540479B - Curved surface display panel, manufacturing method and display device - Google Patents
Curved surface display panel, manufacturing method and display device Download PDFInfo
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- CN112540479B CN112540479B CN202011215305.6A CN202011215305A CN112540479B CN 112540479 B CN112540479 B CN 112540479B CN 202011215305 A CN202011215305 A CN 202011215305A CN 112540479 B CN112540479 B CN 112540479B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- 238000005452 bending Methods 0.000 claims abstract description 150
- 239000000758 substrate Substances 0.000 claims abstract description 50
- 238000000034 method Methods 0.000 claims description 7
- 238000002834 transmittance Methods 0.000 abstract description 23
- 230000007547 defect Effects 0.000 abstract description 13
- 230000035515 penetration Effects 0.000 abstract description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 8
- 239000003086 colorant Substances 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
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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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
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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
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Abstract
The application discloses a curved surface display panel, a manufacturing method and a display device; the curved surface display panel is divided into a bending area and a non-bending area, and the box thickness of the bending area is larger than that of the non-bending area; the curved surface display panel comprises a substrate, wherein the substrate comprises a substrate and a color resistance layer, and the color resistance layer is arranged on the substrate; the color resistance layer comprises a red resistance, a green resistance and a blue resistance, the thickness of the blue resistance correspondingly arranged on the bending area is smaller than that of the blue resistance correspondingly arranged on the non-bending area, and the blue resistance corresponding to the bending area of the display panel is thinned, so that the light penetration rate is improved, the brightness of the blue resistance is enhanced, and the yellow defect caused by the reduction of the blue resistance transmittance is avoided.
Description
Technical Field
The application relates to the technical field of display, in particular to a curved surface display panel, a manufacturing method and a display device.
Background
As display devices are used as display devices of television receivers, the screens of such display devices become larger and larger. As the screen size of the television display device increases, a viewing angle difference between a viewing angle when a viewer views from a central portion of the screen and a viewing angle when the viewer views from left and right edges of the screen increases, in a large-sized television screen, glare in the screen also increases, the viewing angle difference can be corrected by bending the screen into a concave shape, a curved liquid crystal display panel can be manufactured by applying a curved surface to a flat liquid crystal display panel, and in such a case, compression will occur at an upper substrate and stretching will occur at a lower substrate, and therefore, a cell gap of a liquid crystal layer increases at a portion of the curved liquid crystal display panel, and when the cell gap of the liquid crystal layer increases at a portion of the liquid crystal display panel, a light transmittance of blue pixels decreases compared to other portions of the liquid crystal display panel, resulting in a yellowish image being viewed.
In the curved display panel, how to compensate for the reduction of the light transmittance due to the cell gap is a major development direction of the curved display panel.
Disclosure of Invention
The application aims to provide a curved surface display panel, a manufacturing method and a display device, so that the light transmittance at a cell gap is improved, and yellow defects are avoided.
The application discloses a curved surface display panel, which is divided into a bending area and a non-bending area, wherein the box thickness of the bending area is greater than that of the non-bending area; the curved surface display panel comprises a substrate, wherein the substrate comprises a substrate and a color resistance layer; the color resistance layer is arranged on the substrate; the color resistance layer comprises a red resistance, a green resistance and a blue resistance, and the thickness of the blue resistance correspondingly arranged on the bending area is smaller than that of the blue resistance correspondingly arranged on the non-bending area.
Optionally, the thicknesses of the blue resistors correspondingly arranged in the bending area are consistent.
Optionally, the bending region includes a middle region and two side regions; the box thickness corresponding to the middle area is larger than the box thickness corresponding to the two side areas;
in the bending region, the thickness of the blue resistor increases from the middle region to the two side regions.
Optionally, the substrate includes a first substrate and a second substrate, the first substrate and the second substrate are disposed opposite to each other, the substrate and the color resistor are disposed on the first substrate, and the light-shielding layer is disposed between the substrate and the color resistor layer; a transparent electrode disposed on the color resist layer; the shading layer is in a grid shape, and the red resistor, the green resistor and the blue resistor are arranged in the grid.
Optionally, the thickness of the transparent electrode correspondingly disposed on the blue resistor in the bending region is greater than the thickness of the transparent electrode correspondingly disposed on the blue resistor in the non-bending region.
Optionally, the thickness of the blue resistor in the bending region is 60-80% of the thickness of the green resistor in the bending region.
Optionally, in the bending region, the color resistors further include a red color resistor and a green color resistor, and a thickness of the blue color resistor in the bending region is 70% of a thickness of the green color resistor in the bending region.
Optionally, the blue resistors in the bending area are arranged along the length direction of the curved surface at the bending position, and the heights of the blue resistors in the same row along the length direction of the curved surface at the bending position are equal.
Optionally, the color resists with the same color in the same row or the same column in the color resist layer are arranged end to end in a strip-shaped manner.
Optionally, the color resists with the same color in the same row or the same column in the color resist layer are arranged at intervals and arranged in an island manner.
Optionally, in the bending region, the line width of the light shielding layer corresponding to the blue resistor is narrower.
Optionally, the curved display panel includes a plurality of pixels, where the pixels include a red sub-pixel, a green sub-pixel, and a blue sub-pixel, and the blue pixel includes a thin film transistor and a pixel electrode disposed on the second substrate, and a blue resistor disposed on the first substrate; the pixel electrode is divided into one or more domains, a plurality of parallel branch electrodes are respectively arranged in the domains, a plurality of cracks are arranged among the parallel branch electrodes, and the cracks corresponding to the blue sub-pixels in the bending area are wider than the cracks corresponding to the blue sub-pixels in the non-bending area.
The application also discloses a manufacturing method of the curved surface display panel, which comprises the following steps:
a red color resist, a green color resist and a blue color resist are formed on a substrate.
The blue resistors in the bending area and the blue resistors in the non-bending area are made of the same photomask.
The application also discloses curved surface display device, including the aforesaid a curved surface display panel, and drive curved surface display panel's drive circuit.
The problem of reduction of light transmittance of the blue resistor caused by increase of the box thickness is compensated by thinning the blue resistor corresponding to the bending area in the curved-surface display panel, compared with the case that the light transmittance of the color resistors of other colors in the bending area is also proportionally low, but the light transmittance of the blue resistor in the bending area is lower, the light transmittance of blue light can be improved after the blue resistor in the corresponding bending area is thinned, and when three primary colors are mixed, the yellow defect is improved due to the fact that the blue light is compensated; meanwhile, the difference between the colors of the display picture in the bending area and the colors in the non-bending area is reduced, the whole display picture is more balanced, no abrupt feeling is generated visually, and the display effect is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the application, are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a top view of a display device according to an embodiment of the present application;
FIG. 2 is a top view of a curved display panel according to an embodiment of the present application
FIG. 3 is a cross-sectional view of a curved display panel according to an embodiment of the present application;
FIG. 4 is a top view of a color resist layer of an embodiment of the present application;
FIG. 5 is a top view of a color resist layer of another embodiment of the present application;
FIG. 6 is a top view of a color resist layer of another embodiment of the present application;
FIG. 7 is a top view of a curved display panel according to another embodiment of the present application;
FIG. 8 is a top view of a curved display panel according to another embodiment of the present application;
fig. 9 is a top view of a pixel of another embodiment of the present application.
100, a curved display panel; 110. a bending region; 111. a first curved region; 112. a second bending region; 113. a middle region; 114. two side regions; 120. a non-bending region; 121. a first region; 122. a second region; 123. a third region; 130. a substrate; 131. a first substrate; 132. a second substrate; 133. a substrate; 134. a color resist layer; 135. red resistance; 136. a green resistor; 137. blue resistance; 138. a transparent electrode; 139. a thin film transistor; 140. a light-shielding layer; 150. a pixel electrode; 151. a domain; 152. a branch electrode; 153. cracking; 160. a liquid crystal; 170. a pixel; 171. a red sub-pixel; 172. a green sub-pixel; 173. a blue sub-pixel; 180. a drive circuit; 200. a display device.
Detailed Description
It is to be understood that the terminology, the specific structural and functional details disclosed herein are for the purpose of describing particular embodiments only, and are representative, but that the present application may be embodied in many alternate forms and should not be construed as limited to only the embodiments set forth herein.
In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or as implicitly indicating the number of technical features indicated. Thus, unless otherwise specified, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "plurality" means two or more. The terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that one or more other features, integers, steps, operations, elements, components, and/or combinations thereof may be present or added.
Further, terms of orientation or positional relationship indicated by "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, are described based on the orientation or relative positional relationship shown in the drawings, are simply for convenience of description of the present application, and do not indicate that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application.
Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, fixed connections, removable connections, and integral connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
The technical term "viewing angle" is defined as an angle between a line of sight of a viewer viewing a screen and a tangent line to an intersection of the line of sight and a surface of the viewed screen, and a difference between a center and left/right edge viewing angles is referred to as "viewing angle difference", and glare in the screen is also increased in a large-sized television screen. The viewing angle difference can be corrected by bending the screen into a concave shape, when the display panel is bent to have a concave screen, a display defect such as a yellowish image is generated due to stress (bending stress) of the bent surface, and when an image to be displayed on the display panel includes a yellow component, a yellowish defect occurs on the screen thereof, for example, when an image is displayed by three colors such as red, green, and blue, the light transmittance of a blue sub-color pixel corresponding to blue is lower than that of other color pixels, thereby causing a yellowish defect.
The present application is described in detail below with reference to the figures and alternative embodiments.
As shown in fig. 1 to 4, as an embodiment of the present application, a curved surface display device 200 is disclosed, which includes a driving circuit 180 that drives the curved surface display panel; the curved display panel 100 is divided into a curved region 110 and a non-curved region 120; the thickness of the bending region 110 is greater than that of the non-bending region 120, the curved display panel 100 includes first and second substrates 131 and 132 and liquid crystal 160, and the liquid crystal 160 is filled between the first and second substrates 131 and 132; the first base plate 131 comprises a substrate 133, a color resistance layer 134 disposed on the substrate 133; the color resistance layer 134 includes a red resistance 135, a green resistance 136 and a blue resistance 137, and the thickness of the blue resistance 137 correspondingly disposed in the bending region 110 is smaller than the thickness of the blue resistance 137 correspondingly disposed in the non-bending region 120.
Specifically, the first substrate 131 is a color filter substrate 130, the second substrate 132 is an array substrate 130, the cell thickness corresponding to the bending region 110 is D1, the cell thickness corresponding to the non-bending region 120 is D2, the cell thickness D1 of the bending region 110 is greater than the cell thickness D2 of the non-bending region 120, the cell gap of the liquid crystal 160 layer is increased at a portion of the bending liquid crystal 160 display panel to form the bending region 110, and when the cell gap is increased at a portion of the liquid crystal 160 display panel, the transmittance of the blue color filter 137 is the lowest compared with the transmittance of other color filters in the bending region 110 of the curved display panel 100, so that a yellowish image is observed, in the present application, the blue color filter 137 corresponding to the bending region 110 of the curved display panel 100 is thinned to compensate the problem of the decrease in transmittance of the blue color filter 137 caused by the increase in the cell thickness, and the light transmittance of the blue color filter 137 in the bending region 110 is increased after being thinned, when the three primary colors are mixed, the blue light is compensated, so that the yellow defect is improved; meanwhile, the difference between the color of the display picture in the curved area 110 and the color in the non-curved area 120 is reduced, the whole display picture is more balanced, no abrupt feeling is generated visually, and the display effect is improved.
Specifically, the bending region 110 includes a middle region 113 and two side regions 114; the box thickness corresponding to the middle area 113 is larger than the box thickness corresponding to the two side areas 114; in the bending region 110, the thickness of the blue resistor 137 gradually increases from the middle region 113 to the two side regions 114. In the present scheme, the box thicknesses in the bending region 110 are different, the middle region 113 corresponding to the box thickness of the corresponding bending region 110 is larger, and the box thicknesses of the two side regions 114 are smaller, so that different thicknesses are correspondingly adjusted for each blue resistor 137 in the bending region, and the thickness of the blue resistor 137 changes along with the change of the box thickness, on the premise of avoiding light leakage, the thicker the box thickness is, the thinner the blue resistor 137 is in the bending region 110, so that each blue resistor 137 obtains different thicknesses according to the box thickness, thereby each blue resistor 137 correspondingly transmits different brightness, thereby not only avoiding the generation of yellow defects, but also adjusting the thicknesses of the blue resistors 137 in the corresponding bending region 110, and enabling the curved display panel 100 to achieve the best display effect.
Specifically, the bending region 110 includes a first bending region 111 and a second bending region 112; the non-bending region 120 correspondingly includes: a first region 121, a second region 122, and a third region 123; the first bending region 111 has one end connected to the second region 122 and one end connected to the first region 121; the second bending region 112 has one end connected to the second region 122 and one end connected to the third region 123; the first bending region 111 and the second bending region 112 have the same corresponding cell thickness, and the first region 121, the second region 122, and the third region 123 have the same cell thickness. Specifically, the thicknesses of the blue resistors 137 in the first bending region 111 and the second bending region 112 are set to be the same, in this scheme, the blue resistors 137 in the first bending region 111 and the second bending region 112 are uniformly thinned, and the thicknesses of the blue resistors 137 in the two bending regions 110 are the same, so that the light transmittance of the blue resistors 137 in the bending regions 110 is uniformly improved, the light transmittance of the light corresponding to the blue resistors 137 in the bending regions 110 is enhanced, the transmitted brightness is enhanced, the problem of yellow defect caused by the decrease of the light transmittance is avoided, meanwhile, the brightness corresponding to the blue resistors 137 in the bending regions 110 is balanced, the brightness deviation of the blue resistors 137 in the bending regions 110 corresponding to the blue resistors 137 not corresponding to the bending regions 120 is reduced, and the process difficulty is low.
Further, the first substrate 131 further includes a light shielding layer 140 and a transparent electrode 138 in a grid shape, and the light shielding layer 140 is disposed between the substrate 133 and the color resist layer 134. The red resistor 135, the green resistor 136 and the blue resistor 137 are arranged in the grid; the transparent electrode 138 is disposed on the red resistor 135, the green resistor 136 and the blue resistor 137, and specifically, the transparent electrode 138 is correspondingly disposed on the blue resistor 137 of the bending region 110; is larger than the thickness of the transparent electrode 138 correspondingly disposed on the blue resistor 137 of the non-bending region 120. In the present embodiment, in the bending region 110, the thickness of the transparent electrode 138 corresponding to the blue resistor 137 is greater than the thickness of the pixel electrode 150 on the blue resistor 137 in the non-bending region 120, and the surface of the transparent electrode 138 is a flat surface, which is equivalent to a flat layer, providing a good foundation for the next process, and the specific light shielding layer 140 is a black matrix.
Certainly, it is also possible to cover the blue resistor 137 corresponding to the bending region 110 with a flat layer, and then lay the transparent electrode 138, where the flat layer is favorable for the light transmittance, further enhance the light transmittance of the blue resistor 137, avoid the visual obtrusiveness caused by the uneven display, and simultaneously avoid the disconnection of the transparent electrode 138.
In the bending area 110, the color resistors further include a red color resistor 135 and a green color resistor, the thickness of the blue color resistor 137 in the bending area 110 is 60% -80%, specifically 70% of the thickness of the green color resistor 136 in the bending area 110, and in this thickness, it is ensured that the blue color resistor 137 in the bending area 110 is not leaked, and an application range of yellow defect of the blue color resistor 137 due to low transmittance is also avoided, and the thickness of the blue color resistor 137 in the bending area 110 is within a controllable range, so that the curved display panel 100 is adjusted to achieve the most desirable display effect, of course, the color resistors in the bending area 110 can be thinned in equal proportion, as the box thickness is increased, the transmittance of the color resistor in the corresponding bending area 110 is reduced in equal proportion compared with the color resistor in the non-bending area 120, and the color resistors in the corresponding bending area 110 can be thinned in equal proportion according to the above range, so as to enhance the transmittance of the bending area 110, the yellow defect is avoided, so that the brightness of the curved region 110 and other curved regions 110 is uniform, and the display quality of the whole curved display panel 100 is improved.
Furthermore, the blue resistors in the bending area are arranged along the length direction of the curved surface at the bending position, for example, when the panel is bent along the scanning line direction, the blue resistors are arranged along the data line direction; on the contrary, the blue resistors are arranged in the direction of the scanning line. After bending, the bending area is strip-shaped, the blue resistors can be arranged along the strip-shaped direction, and the box thicknesses corresponding to the blue resistors in the same row along the length direction of the curved surface at the bending position are the same, so that the heights of the blue resistors in the row/column are equal, the compensation for the penetration rate is consistent, and the display quality of the bending area can be effectively improved. As shown in fig. 5, the color resists in the same row or column with the same color in the color resist layer 134 are arranged end to end in a strip-like manner; in the scheme, the strips are arranged and closely arranged, so that light leakage is avoided, and the display effect is improved; as shown in fig. 6, it is needless to say that the island arrays may be provided, specifically: the color resistors with the same color in the same row or column in the color resistor layer 134 are arranged at intervals in an island-shaped mode, the color resistors in the island-shaped mode are prevented from being extruded when the color resistors are bent, certain buffer space is provided at intervals, the color resistors are prevented from being uneven on the surface due to extrusion, and uneven display is avoided.
In contrast to the previous embodiment, another way is shown: on the basis that the color resistors in the corresponding bending regions 110 are integrally thinned, the line widths of the light shielding layers 140 corresponding to the integral color resistors in the bending regions 110 are correspondingly adjusted, so that the corresponding light transmittance in the bending regions 110 is maximized by combining the scheme, the light transmission amount of the blue resistors 137 in the bending regions 110 is large, the curved display panel 100 is in the optimal brightness balance state, and the display quality is in the optimal state; specifically, as shown in fig. 7: wholly correspond and adjust the light shield layer 140 linewidth that the colour resistance corresponds in the bending region 110, in this scheme, can make the luminousness in the bending region 110 wholly improve for the luminance homogeneity of bending region 110 and non-bending region 120, and then improve the holistic luminance of display panel, avoid because the colour resistance in the bending region 110 is thick owing to permeating through the box thickness, reduce the light transmission volume's of colour resistance loss in the bending region 110, make and reach best display effect.
Specifically, only the line width corresponding to the blue resistor 137 may be adjusted in the curved region 110, and the line width of the light shielding layer 140 corresponding to the blue resistor 137 is narrower, in this scheme, the grid-shaped light shielding layer 140 is correspondingly adjusted, and particularly, the line width of the light shielding layer 140 corresponding to the blue resistor 137 in the curved region 110 is reduced, so that the pixel aperture ratio corresponding to the blue resistor 137 is improved, the light transmission amount is increased, the brightness is improved, and the blue resistor 137 in the curved region 110 does not have yellow defects, further, different box thicknesses of the curved region 110 may also be correspondingly adjusted, the line width of the light shielding layer 140 corresponding to the blue resistor 137 in the curved region 110 is uniformly adjusted, and the line width is gradually widened from the middle region 113 to the two side regions 114; thereby causing an increase in the blue resistance 137 in the bending area 110 for optimal display.
In contrast to the previous embodiment, another way is shown: on the basis of thinning the color resistors in the corresponding bending region 110, the aperture ratios of the pixel electrodes 150 corresponding to the color resistors in the bending region 110 can be adjusted correspondingly and integrally, so as to improve the brightness of the whole bending region 110 and enable the display effect to be optimal; as shown in fig. 8 and 9, specifically, it is also possible to adjust only the aperture ratio of the electrode corresponding to the blue resistor 137 in the bending region 110: the curved display panel 100 comprises a plurality of pixels 170, wherein the pixels 170 comprise a red sub-pixel 171, a green sub-pixel 172 and a blue sub-pixel 173, and the blue sub-pixel 173 comprises a thin film transistor 139 arranged on the second substrate 132, a pixel electrode 150 and a blue resistor 137 arranged on the first substrate 131; the pixel electrode 150 is divided into one or more domains 151, a plurality of parallel branch electrodes 152 are respectively arranged in the domains 151, a plurality of slits 153 are arranged among the parallel branch electrodes 152, the slits 153 corresponding to the blue sub-pixels 173 in the bending region 110 are wider than the slits 153 corresponding to the blue sub-pixels 173 in the non-bending region 120, and the transmittance of light corresponding to the blue resistors 137 is improved by correspondingly adjusting the slits 153 of the pixel electrode 150 corresponding to the blue resistors 137, so that the brightness passes through the blue resistors 137 to the maximum; the generation of yellow defects is avoided; of course, the width of the slits 153 from the middle region 113 to the two side regions 114 may be reduced correspondingly by uniformly adjusting the width of the blue resistor 137 in the bending region 110 corresponding to the slits 153 in the pixel electrode 150 corresponding to the different cell thicknesses of the bending region 110; thereby achieving the uniform display effect.
As another embodiment of the present application, a method for manufacturing the curved display panel is disclosed, which includes the steps of:
a red color resist, a green color resist and a blue color resist are formed on a substrate.
The blue resistors in the bending area and the blue resistors in the non-bending area are made of the same photomask.
The blue resistors with different heights can be formed by a half-tone mask process and the same photomask, so that the cost can be effectively reduced. In order to simplify the process, the blue resistors in the bending area can be set to have the same thickness, the blue resistors in the non-bending area can be set to have the other thickness, the thickness is only two, the corresponding photomask is easy to design and manufacture, the process difficulty can be simplified, and the production cost can be reduced. Certainly, in order to improve the display quality, the blue resistors in the bending area can also be set to have different thicknesses, and the thicker the cell thickness is, the thinner the blue resistors are; conversely, the thicker the blue resist thickness.
It should be noted that, the limitations of each step in the present disclosure are not considered to limit the order of the steps without affecting the implementation of the specific embodiments, and the steps written in the foregoing may be executed first, or executed later, or even executed simultaneously, and as long as the present disclosure can be implemented, all the steps should be considered as belonging to the protection scope of the present application.
The technical solution of the present application can be widely applied to various display panels, such as TN (Twisted Nematic) display panel, IPS (In-Plane Switching) display panel, VA (Vertical Alignment) display panel, MVA (Multi-Domain Vertical Alignment) display panel, and of course, other types of display panels, such as OLED (Organic Light-Emitting Diode) display panel, and the above solution can be applied thereto.
The foregoing is a more detailed description of the present application in connection with specific alternative embodiments, and the specific implementations of the present application are not to be considered limited to these descriptions. For those skilled in the art to which the present application pertains, several simple deductions or substitutions may be made without departing from the concept of the present application, and all should be considered as belonging to the protection scope of the present application.
Claims (8)
1. The curved display panel is characterized in that the curved display panel is divided into a bending area and a non-bending area, and the box thickness of the bending area is larger than that of the non-bending area; the display panel includes a substrate including:
a substrate;
a color resist layer disposed on the substrate;
the color resistance layer comprises a red resistance, a green resistance and a blue resistance, and the thickness of the blue resistance correspondingly arranged in the bending area is smaller than that of the blue resistance correspondingly arranged in the non-bending area;
the substrate comprises a first substrate and a second substrate; the first substrate and the second substrate are oppositely arranged; the substrate and the color resistance layer are arranged on the first substrate;
a light-shielding layer disposed between the substrate and the color resist layer; the shading layer is in a grid shape, and the red resistor, the green resistor and the blue resistor are arranged in the grid;
a transparent electrode disposed on the color resist layer;
the curved surface display panel comprises a pixel electrode, the pixel electrode is divided into one or more domains, a plurality of parallel branch electrodes are respectively arranged in the domains, a plurality of cracks are arranged among the parallel branch electrodes, and the cracks corresponding to the blue sub-pixels in the bending area are wider than the cracks corresponding to the blue sub-pixels in the non-bending area;
the bending region comprises a middle region and two side regions, and the thickness of the blue resistor increases from the middle region to the two side regions in the bending region; the box thickness corresponding to the middle area is larger than the box thickness corresponding to the two side areas;
the number of the bending areas is two, namely a first bending area and a second bending area; the non-bending area correspondingly comprises a first area, a second area and a third area; one end of the first bending area is connected with the second area, and the other end of the first bending area is connected with the first area; one end of the second bending area is connected with the second area, and the other end of the second bending area is connected with the third area; the box thicknesses corresponding to the first bending area and the second bending area are equal, and the box thicknesses of the first area, the second area and the third area are equal; the thicknesses of the blue resistors at the corresponding positions in the first bending region and the second bending region are consistent.
2. The curved display panel according to claim 1, wherein a thickness of the transparent electrode corresponding to the blue resist disposed in the curved region is greater than a thickness of the transparent electrode corresponding to the blue resist disposed in the non-curved region.
3. The curved display panel of claim 1, wherein the thickness of the blue resist in the curved region is 60% to 80% of the thickness of the green resist in the curved region.
4. The curved display panel according to claim 1, wherein the blue resistors in the curved regions are arranged along the length direction of the curved surface at the bend, and the blue resistors in the same row along the length direction of the curved surface at the bend are equal in height.
5. The curved display panel according to claim 1, wherein in the curved region, the blue resists correspond to line widths of the light-shielding layers, which become wider in order from the middle region to the side regions.
6. The curved display panel of claim 1, wherein a flat layer is applied on the blue mask corresponding to the curved region, and then transparent electrodes are applied.
7. The method for manufacturing a curved display panel according to claim 1, comprising the steps of:
forming a red resistor, a green resistor and a blue resistor on a substrate;
the blue resistors in the bending area and the blue resistors in the non-bending area are made of the same photomask.
8. A display device comprising the curved display panel according to any one of claims 1 to 6, and a driving circuit for driving the curved display panel.
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