CN110288904B - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN110288904B CN110288904B CN201910579035.8A CN201910579035A CN110288904B CN 110288904 B CN110288904 B CN 110288904B CN 201910579035 A CN201910579035 A CN 201910579035A CN 110288904 B CN110288904 B CN 110288904B
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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
- G02F1/1339—Gaskets; Spacers; Sealing of cells
- G02F1/13394—Gaskets; Spacers; Sealing of cells spacers regularly patterned on the cell subtrate, e.g. walls, pillars
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
Abstract
The embodiment of the invention provides a display panel and a display device, relates to the technical field of display, and can improve poor display of the display panel due to poor thickness consistency. The display panel includes: a plurality of sub-pixel regions; the color film layer comprises a first color quantum dot color film positioned in a first color sub-pixel region, a second color quantum dot color film positioned in a second color sub-pixel region and a third optical film layer positioned in a third color sub-pixel region; the light emitted by the backlight source and the third color are the same color; and a spacer is arranged at the junction of the at least one first color sub-pixel region and the at least one second color sub-pixel region adjacent to the at least one first color sub-pixel region, the spacer is positioned between the backlight source and the color film layer, and the spacer and the third optical film layer are prepared in the same layer.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of display, in particular to a display panel and a display device.
[ background of the invention ]
The Quantum dot material has the advantages of concentrated light emission spectrum, high color purity, continuously adjustable light emission spectrum and the like, and the color gamut and the color reduction capability of the display panel can be effectively improved by applying the Quantum dot material to the display panel.
The display panel using the quantum dot material comprises a color film substrate and a backlight substrate which are oppositely arranged, and a supporting structure needs to be arranged between the color film substrate and the backlight substrate to ensure the thickness consistency of the display panel, however, the surface smoothness of one side of the current color film substrate close to the backlight substrate is poor, so that the supporting effect between the color film substrate and the backlight substrate is poor, and the display panel is easy to cause corresponding poor display due to poor thickness consistency.
[ summary of the invention ]
In view of the above, embodiments of the present invention provide a display panel and a display device, which can improve poor display of the display panel due to poor thickness uniformity.
In one aspect, an embodiment of the present invention provides a display panel, including:
a plurality of sub-pixel regions including a first color sub-pixel region, a second color sub-pixel region, and a third color sub-pixel region;
the color film layer comprises a first color quantum dot color film positioned in the first color sub-pixel region, a second color quantum dot color film positioned in the second color sub-pixel region and a third optical film layer positioned in the third color sub-pixel region;
the light emitted by the backlight source and the third color are the same color;
and a spacer is arranged at the junction of at least one first color sub-pixel region and at least one second color sub-pixel region adjacent to the first color sub-pixel region, the spacer is positioned between the backlight source and the color film layer, and the spacer and the third optical film layer are prepared on the same layer.
On the other hand, an embodiment of the present invention further provides a display device, including the display panel.
According to the display panel and the display device, the spacer prepared in the same layer as the third optical film layer is arranged at the junction of the first color sub-pixel area and the second color sub-pixel area, on one hand, the spacer can achieve a flattening effect at the junction of different sub-pixel areas, and after the support structure between the backlight source and the color film layer is further arranged at the position of the spacer, the support effect of the support structure can be improved, so that poor display of the display panel caused by poor thickness consistency is improved; on the other hand, the spacer and the third optical film layer are prepared in the same layer, so that a separate process is not needed for manufacturing, and the process is further simplified.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, 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 cross-sectional view of a display panel according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a portion of another display panel according to an embodiment of the invention;
FIG. 3 is a schematic cross-sectional view of a portion of another display panel according to an embodiment of the invention;
FIG. 4 is an enlarged schematic view of a partial area of a display panel according to an embodiment of the present invention;
FIG. 5 is a schematic view of a cross-sectional view along AA' of FIG. 4;
fig. 6 is a schematic structural diagram of a display device according to an embodiment of the invention.
[ detailed description ] embodiments
For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.
It should be understood that the described embodiments are only some embodiments of the invention, and not all 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 invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
As shown in fig. 1, fig. 1 is a schematic cross-sectional view of a partial region of a display panel according to an embodiment of the present invention, and an embodiment of the present invention provides a display panel, including: a plurality of sub-pixel regions 1, the plurality of sub-pixel regions 1 including a first color sub-pixel region 11, a second color sub-pixel region 12, and a third color sub-pixel region 13; the color filter comprises a backlight source 2 and a color film layer 3 positioned on the light emitting side of the backlight source 2, wherein the color film layer 3 comprises a first color quantum dot color film 31 positioned in a first color sub-pixel region 11, a second color quantum dot color film 32 positioned in a second color sub-pixel region 12 and a third optical film layer 33 positioned in a third color sub-pixel region 13; the light emitted by the backlight source 2 and the third color are the same color; and a spacer 4 is arranged at the junction of at least one first color sub-pixel region 11 and at least one second color sub-pixel region 12 adjacent to the first color sub-pixel region, the spacer 4 is positioned between the backlight source 2 and the color film layer 3, and the spacer 4 and the third optical film layer 33 are prepared in the same layer.
Specifically, the sub-pixel regions 1 of different colors are used to realize display of different colors, the backlight 2 emits light to the color film layer 3, the emission color is a third color, that is, the display color corresponding to the sub-pixel region 13 of the third color, each quantum dot color film is excited by the light emitted by the backlight 2, and light emission of the corresponding color is realized, for example, after the quantum dot color film 31 of the first color is excited by the light of the third color emitted by the backlight 2, the emission light is the light of the first color, after the quantum dot color film 32 of the second color is excited by the light of the third color emitted by the backlight 2, the emission light is the light of the second color, after the light emitted by the backlight 2 passes through the third optical film layer 33, the third optical film layer 33 may be a quantum dot color film or another material, as long as the light of the third color emitted by the backlight 2 can be realized, it is sufficient that the light of the third color is emitted. The retaining wall structure between the backlight source 2 and the color film layer 3 is used as a supporting structure between the backlight source 2 and the color film layer 3, and is usually disposed at a junction of adjacent sub-pixel regions 1 to reduce adverse effects of the supporting structure on image display.
In the display panel in the embodiment of the invention, the spacer prepared in the same layer as the third optical film layer is arranged at the boundary of the first color sub-pixel area and the second color sub-pixel area, so that on one hand, the spacer can play a role in flattening the boundary of different sub-pixel areas, and after the support structure between the backlight source and the color film layer is further arranged at the position of the spacer, the support effect of the support structure can be improved, thereby improving the poor display of the display panel caused by poor thickness consistency; on the other hand, the spacer and the third optical film layer are prepared in the same layer, so that a separate process is not needed for manufacturing, and the process is further simplified.
Optionally, in each sub-pixel region 1, a convex lens-shaped curved surface structure protruding towards the direction of the backlight 2 is formed on one side surface of the quantum dot color film close to the backlight 2. The structure can play a role in converging light so as to improve the light-emitting efficiency. On the basis of the structure, the flatness of one side, close to the backlight source 2, of the color film layer 3 is further deteriorated, particularly, at the junction of the adjacent sub-pixel areas 1, the thickness of the color film layer 3 is the minimum, and a larger concave structure is formed, so that on the basis, the spacer 4 prepared in the same layer as the third optical film layer 33 is arranged at the junction of the first color sub-pixel area 11 and the second color sub-pixel area 12, the concave formed at one side, close to the backlight source 2, of the color film layer 3 can be filled through the spacer 4, the flatness of the color film layer 3 is improved, and after the position of the spacer 4 is further provided with the supporting structure between the backlight source 2 and the color film layer 3, the supporting effect of the supporting structure can be improved; meanwhile, the quantum dot color film is of a convex lens-shaped curved surface structure, and the structure can play a role in converging light so as to improve the light-emitting efficiency.
Optionally, the third color is blue. The blue light is used as the light for exciting the quantum dot color film, so that the quantum dot color film has high light conversion efficiency. Meanwhile, for example, the first color may be red, and the second color may be green; alternatively, the first color is green and the second color is red.
Optionally, the third optical film layer 33 and the spacer 4 are transparent materials.
Specifically, when the third optical film 33 is made of a transparent material, the light of the third color emitted by the backlight 2 can be directly emitted, so as to realize that the sub-pixel region 13 of the third color displays the third color, and meanwhile, the third optical film 33 made of a transparent material can serve the purpose of further optimizing the display effect, for example, when the third optical film 33 is configured to be a structure similar to a convex lens, although it is transparent, it can serve the function of converging light, so as to improve the light emitting efficiency. For the spacer 4 made of a transparent material, when the third color light emitted by the backlight 2 is irradiated to the spacer 4, the third color light is still transmitted, so that even if the light emitted by the backlight 2 is irradiated to the first color quantum dot color film 31 or the second color quantum dot color film 32 through the spacer 4, the emergent light color of the first color quantum dot color film 31 or the second color quantum dot color film 32 cannot be adversely affected.
Optionally, the third optical film layer 33 and the spacer 4 are blue quantum dot materials.
Specifically, when the third optical film 33 is made of a blue quantum dot material, the blue light emitted by the backlight 2 excites the third optical film 33 to generate blue light for emitting, so as to realize that the third color sub-pixel region 13 displays blue, and meanwhile, the third optical film 33 made of the blue quantum dot material can play a role in further optimizing the display effect, for example, when the third optical film 33 is configured like a convex lens, although the color of the light emitted by the backlight 2 is not changed, the third optical film can play a role in converging light, so as to improve the light emitting efficiency. The reason why the material for the spacer 4 needs to be provided as the blue quantum dot material, not as the other color quantum dot materials, is that, the distances between the different color sub-pixel regions are relatively close, if the spacer 4 is made of red quantum dot material or green quantum dot material, when the blue light emitted from the backlight source is irradiated to the spacer 4 made of red quantum dot material, the spacer 4 made of red quantum dot material is excited to generate red light, and the position of the spacer 4 is closer to the lower part, so the red light generated by the spacer 4 is easier to irradiate other nearby color sub-pixel areas, for example, when the light irradiates a green quantum dot color film in a green sub-pixel region, part of red light can directly penetrate the green quantum dot color film to be emitted in the green sub-pixel region, and at the time, the red light emitted in the green sub-pixel region causes crosstalk between different colors, so that the light emitted by the green sub-pixel region is not pure green light. In the embodiment of the present invention, the spacer 4 is made of blue quantum dot material, that is, the spacer 4 made of blue quantum dot material is disposed at the boundary between the red sub-pixel region and the green sub-pixel region, and at this time, when the blue light emitted from the backlight source 2 is irradiated onto the spacer 4, the spacer 4 is still excited to generate blue light transmission, and therefore, even if the light emitted by the backlight source 2 irradiates the adjacent red sub-pixel area or green sub-pixel area through the spacer 4, the red quantum dot color film is still excited to emit red light, the light emitted by the red sub-pixel area is ensured to be red light, the green quantum dot color film is excited to emit green light, the light emitted by the green sub-pixel area is ensured to be green light, that is, the color of the emergent light of the first color quantum dot color film 31 or the second color quantum dot color film 32 is not adversely affected, and crosstalk between different colors is not caused.
In addition, when the third optical film layer 33 is made of a blue quantum dot material, the blue backlight may be further filtered compared to a transparent material, so that monochromaticity of blue light may be improved, and a display effect may be further improved.
Optionally, at the junctions of any adjacent sub-pixel regions 1, the quantum dot color films are not overlapped, or as shown in fig. 2, fig. 2 is a schematic cross-sectional structure diagram of a partial region of another display panel according to an embodiment of the present invention, the quantum dot color films are overlapped, and a total thickness S1 of the overlapped quantum dot color films in the overlapped region is smaller than a maximum thickness S2 of any overlapped quantum dot color film.
Specifically, for example, the backlight 2 emits blue light, and at the boundary between the red sub-pixel region and the green sub-pixel region, if the red quantum dot color film and the green quantum dot color film are not overlapped, the probability of optical crosstalk is reduced, that is, the probability of red light entering the green sub-pixel region is reduced, and the probability of green light entering the red sub-pixel region is reduced. Similarly, when the red quantum dot color film and the green quantum dot color film are overlapped, if the total thickness S1 of the two films in the overlapping region is larger, the probability of optical crosstalk may be increased, for example, the probability of red light generated by the red quantum dot color film entering the green sub pixel region is increased, therefore, in the embodiment of the present invention, the total thickness S1 of the overlapped quantum dot color film in the overlapping region is set to be smaller than the maximum thickness S2 of any overlapped quantum dot color film, so as to reduce the probability of optical crosstalk. In addition, the quantum dot color film is not arranged at the overlapping position of the sub-pixel region 1 or the thickness of the quantum dot color film is smaller than that of the quantum dot color film at the middle position of the sub-pixel region 1, so that the quantum dot color film can be manufactured into a structure similar to a convex lens more easily, the function of converging light rays is realized, and the light-emitting efficiency is improved.
Optionally, the color film layer 3 further includes a black matrix 5 located at the boundary of any two adjacent sub-pixel regions 1, the black matrix 5 is used to separate different sub-pixel regions 1, and in addition, the black matrix 5 can further reduce the probability of optical crosstalk.
Alternatively, as shown in fig. 1, in any cross section (i.e. the cross section shown in fig. 1) in the direction perpendicular to the plane of the display panel, for any sub-pixel region 1 and its black matrix 5, the black matrix 5 has a first portion 51 and a second portion 52 spaced apart from each other, the sub-pixel region 1 is located between the first portion 51 and the second portion 52, an end of the first portion 51 away from the second portion 52 is defined as a point a, an end of the second portion 52 away from the first portion 51 is defined as a point B, a straight line L1 passing through the point a and a straight line L2 passing through the point B are defined, the straight line L1 and the straight line L2 intersect at a point O, the point O is located on the side of the color film layer 3 close to the backlight 2, and an angle between the straight line L1 and the plane of the display panel is defined as a point B
The angle between the line L2 and the plane of the display panel is
The straight line L1 has no intersection point or only one intersection point with the quantum dot color film in the sub-pixel region 1; the line L2 has no intersection or only one intersection with the quantum dot color film in the sub-pixel region 1.
Specifically, a first substrate 01 is arranged on one side of the color film layer 3, which is far away from the backlight source 2, a second substrate 02 is arranged on one side of the backlight source 2, which is far away from the color film layer, when the first substrate 01 is a glass substrate, the refractive index of the first substrate is 1.5, the refractive index of air is 1, light enters an interface between the first substrate 01 and the air from the glass substrate at the boundary, and the critical angle θ of total reflection satisfies the requirement of the interface between the first substrate 01 and the air
If the angle between the light from the backlight 2 and the plane of the display panel is smaller than
Incident air from the glass substrate, at this moment, on the upper surface of the glass substrate, the incident angle of the light is larger than the critical angle theta of total reflection, the light is totally reflected and can not be directly emitted, however, if the included angle between the light and the plane where the display panel is located is larger than the critical angle theta of total reflection, the light can be directly emitted, therefore, the intersection point O of the straight line L1 and the straight line L2 is arranged on one side of the color film layer 3 close to the backlight source 2, and the quantum dot color film is arranged above the straight line L1 and the straight line L2, so that the light generated after the quantum dot color film is excited can only be smaller than the included angle between the light and the plane where the display panel is located
The incident angle of the light on the upper surface of the glass substrate is larger than the critical angle theta of total reflection, that is, the light from the quantum dot material in the adjacent sub-pixel region is ensured to be totally reflected on the surface of the glass substrate to avoid direct emergence, thereby reducing the optical crosstalk.
Optionally, as shown in fig. 3, fig. 3 is a schematic cross-sectional structure diagram of a partial region of another display panel in the embodiment of the present disclosure, where the third optical film 33 is a quantum dot color film of a third color; a first color resistor 61 is arranged on one side, away from the backlight source 2, of the first color quantum dot color film 31, a second color resistor 62 is arranged on one side, away from the backlight source 2, of the second color quantum dot color film 32, and a third color resistor 63 is arranged on one side, away from the backlight source 2, of the third color quantum dot color film; at least two of the first color filter 61, the second color filter 62 and the third color filter 63 overlap to form a black matrix at the boundary of any adjacent plurality of sub-pixel regions 1.
Specifically, the color groups with corresponding colors are arranged on one side of the quantum dot color film, which is far away from the backlight source 2, and optical crosstalk can be further reduced through the filtering effect of the color groups, in addition, the color groups with different colors are mutually overlapped at the junction of the sub-pixel region 1, so that the black matrix can be realized, and therefore, as the black matrix, the process of independently manufacturing the black matrix can be saved, and the process is saved.
Alternatively, as shown in fig. 4 and fig. 5, fig. 4 is an enlarged structural schematic view of a partial region of a display panel in an embodiment of the present invention, fig. 5 is a schematic view of a cross-sectional structure along direction AA' in fig. 4, the display panel further includes a retaining wall structure 7, and the retaining wall structure 7 is located between the backlight 2 and the color film layer 3; the retaining wall structure 7 includes a first retaining wall 71 and a second retaining wall 72, an orthographic projection of the first retaining wall 71 on a plane where the display panel is located at a boundary between the first color sub-pixel region 11 and the second color sub-pixel region 12 adjacent to the first color sub-pixel region 11, and the orthographic projection of the first retaining wall 71 on the plane where the display panel is located overlaps with an orthographic projection of the spacer 4 on the plane where the display panel is located; the orthographic projection of the second retaining wall 72 on the plane of the display panel is positioned in the third color sub-pixel region 13 and the other color sub-pixel regions 1 adjacent to the third color sub-pixel region 13; the first retaining wall 71 and the second retaining wall 72 are prepared by the same process, and the height of the first retaining wall 71 is equal to that of the second retaining wall 72.
Specifically, the first retaining wall 71, i.e. the supporting structure for supporting the color film layer 3 and the backlight source 2, is located at the position of the spacer 4, and when the first retaining wall 71 is subjected to pressure in the direction perpendicular to the plane of the display panel, the first retaining wall 71 is subjected to pressure to perform the supporting function, the second retaining wall 72 is located at the position outside the spacer 4, and when the pressure received by the first retaining wall 71 exceeds the threshold value, the first retaining wall 71 is compressed to shorten the distance between the color film layer 3 and the backlight source 2, at this time, the upper end of the second retaining wall 72 contacts the color film layer 3, the second retaining wall 72 starts to be subjected to pressure to perform the supporting function, that is, the first retaining wall 71 serves as the main supporting structure, and the second retaining wall 72 serves as the auxiliary supporting structure, in the embodiment of the present invention, because the first retaining wall 71 and the spacer 4 cooperate to support the color film layer 3, the second retaining wall 72 independently supports the color film layer 3, therefore, the first retaining wall 71 and the second retaining wall 72 can be set to have the same height, so that the first retaining wall 71 and the second retaining wall 72 can be prepared by the same process, and only the spacer 4 is set at the position of the first retaining wall 71 and the spacer 4 is not set at the position of the second retaining wall 72 when the film layer where the spacer 4 is located is prepared, so that when the display panel is under pressure, the first retaining wall 71 firstly bears the pressure as a main supporting structure, and the second retaining wall 72 bears the pressure again as an auxiliary supporting structure after the display panel is compressed. In the prior art, if a column supporting structure and an auxiliary supporting structure are to be realized, two processes are required to manufacture supporting structures with different heights, but in the embodiment of the invention, only one process is required to manufacture a first retaining wall 71 and a second retaining wall 72 with the same height, and then the corresponding spacer 4 is matched, so that the process is simpler. It should be noted that, in the embodiment of the present invention, specific positions and shapes of the retaining wall structures 7 are not limited, for example, in fig. 4, the first retaining wall 71 is circular and the second retaining wall 72 is rectangular, which is only an example, in other realizable embodiments, the first retaining wall 71 may be configured as a rectangle or other shape, and the second retaining wall 72 may be configured as a circle or other shape, in addition, in fig. 4, the first retaining wall 71 is disposed at the boundary of any adjacent first color sub-pixel region 11 and second color sub-pixel region 12, in fact, specific numbers and positions of the first retaining walls 71 may be set as needed, and likewise, specific numbers and positions of the second retaining walls 72 may also be set as needed, and the positions and numbers of the first retaining walls 71 and the second retaining walls 72 in fig. 4 are only an example.
Alternatively, as shown in fig. 4 and 5, the first color sub-pixel region 11 has an octagonal shape; the second color sub-pixel region 12 is hexagonal in shape; the third color sub-pixel region 13 has a quadrilateral shape; the third color sub-pixel region 13 includes a first edge 81, the second color sub-pixel region 12 includes a second edge 82 adjacent to the first edge 81, the second edge 82 is parallel to the first edge 81; the third color sub-pixel region 13 further includes a third edge 83 adjacent to the first edge 81, the first color sub-pixel region 11 includes a fourth edge 84 adjacent to the third edge 83, the fourth edge 84 is parallel to the third edge 83; the second color sub-pixel region 12 further includes a fifth edge 85 adjacent to the second edge 82, the first color sub-pixel region 11 further includes a sixth edge 86 adjacent to the fourth edge 84, and the fifth edge 85 is parallel to the sixth edge 86.
Specifically, in the case where the areas of the second color sub-pixel region 12 and the first color sub-pixel region 11 are constant, compared with the case where both the second color sub-pixel region 12 and the first color sub-pixel region 11 are set to be quadrilateral in shape, the embodiment of the present invention can reduce the perimeter of the outline of the two regions by increasing the number of side lengths of the shapes of the two regions, which can also reduce the length of the black matrix set around the sub-pixel regions of different colors. Wherein the fifth edge 85 is parallel to the sixth edge 86. Compared with the arrangement mode of the conventional sub-pixel regions, the arrangement mode of the embodiment of the invention not only enables the first color sub-pixel region, the second color sub-pixel region and the third color sub-pixel region to be tightly arranged under the same process condition, but also reduces the distance between the adjacent sub-pixel regions as much as possible, thereby increasing the opening area of the sub-pixel under the same resolution condition, reducing the driving current of the display device, further prolonging the service life of the display device, and simultaneously, arranging the adjacent two sub-pixel regions with different colors in a staggered way at intervals, reducing or eliminating the visibility of patterns, namely improving the uneven display; on the other hand, compared with the conventional arrangement of the sub-pixel region, the first retaining wall 71 and the second retaining wall 72 corresponding to the sub-pixel region in the present disclosure have the advantages that the first retaining wall 71 is used as a main supporting structure, and is dispersed on the display panel, which is more favorable for supporting the display panel, and the second retaining wall 72 is dispersed and concentrated compared with the first retaining wall 71, and bears pressure after the display panel is extruded, which is used as an auxiliary supporting structure.
As shown in fig. 6, fig. 6 is a schematic structural diagram of a display device according to an embodiment of the present invention, and the embodiment of the present invention further provides a display device including the display panel 100.
The specific structure and principle of the display panel 100 are the same as those of the above embodiments, and are not described herein again. The display device in the embodiment of the present invention may be any electronic device with a display function, such as a touch display screen, a mobile phone, a tablet computer, a notebook computer, an electronic book, or a television.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (11)
1. A display panel, comprising:
a plurality of sub-pixel regions including a first color sub-pixel region, a second color sub-pixel region, and a third color sub-pixel region;
the color film layer comprises a first color quantum dot color film positioned in the first color sub-pixel region, a second color quantum dot color film positioned in the second color sub-pixel region and a third optical film layer positioned in the third color sub-pixel region;
the light emitted by the backlight source and the third color are the same color;
a spacer is arranged at the junction of at least one first color sub-pixel area and at least one second color sub-pixel area adjacent to the first color sub-pixel area, the spacer is positioned between the backlight source and the color film layer, and the spacer and the third optical film layer are prepared on the same layer;
the retaining wall structure is positioned between the backlight source and the color film layer and comprises a first retaining wall, and the orthographic projection of the first retaining wall on the plane where the display panel is positioned at the junction of the first color sub-pixel area and a second color sub-pixel area adjacent to the first color sub-pixel area;
the orthographic projection of the first retaining wall on the plane of the display panel is overlapped with the orthographic projection of the spacer on the plane of the display panel;
the retaining wall structure further comprises a second retaining wall, and the orthographic projection of the second retaining wall on the plane where the display panel is located in the third color sub-pixel area and other color sub-pixel areas adjacent to the third color sub-pixel area;
the height of the first retaining wall is equal to that of the second retaining wall.
2. The display panel according to claim 1,
the third color is blue.
3. The display panel according to claim 2,
the third optical film layer and the spacer are made of transparent materials.
4. The display panel according to claim 2,
the third optical film layer and the spacer are made of blue quantum dot materials.
5. The display panel according to claim 1,
at the junctions of any adjacent multiple sub-pixel regions, the quantum dot color films are not overlapped, or the quantum dot color films are overlapped, and the total thickness of the overlapped quantum dot color films in the overlapped regions is smaller than the maximum thickness of any overlapped quantum dot color film.
6. The display panel according to claim 1,
in each sub-pixel region, a convex lens-shaped curved surface structure protruding towards the backlight source direction is formed on one side surface of the quantum dot color film close to the backlight source.
7. The display panel according to claim 6,
the color film layer further comprises a black matrix located at the junction of any two adjacent sub-pixel regions, and the black matrix is used for separating different sub-pixel regions.
8. The display panel according to claim 7,
in any cross section in the direction perpendicular to the plane of the display panel, for any one of the sub-pixel regions and the black matrix thereofIn the array range, the black matrix has a first part and a second part which are spaced from each other, the sub-pixel region is located between the first part and the second part, the end of the first part far away from the second part is defined as a point A, the end of the second part far away from the first part is defined as a point B, a straight line L1 passing through the point A and a straight line L2 passing through the point B are defined, the straight line L1 and the straight line L2 intersect at a point O, the point O is located on the side of the color film layer close to the backlight source, and the angle between the straight line L1 and the plane of the display panel is defined as
The angle between the straight line L2 and the plane of the display panel is
；
The straight line L1 has no intersection point or only one intersection point with the quantum dot color film in the sub-pixel region;
the straight line L2 has no intersection point or only one intersection point with the quantum dot color film in the sub-pixel region.
9. The display panel according to claim 7,
the third optical film layer is a quantum dot color film with a third color;
a first color resistance is arranged on one side, away from the backlight source, of the first color quantum dot color film, a second color resistance is arranged on one side, away from the backlight source, of the second color quantum dot color film, and a third color resistance is arranged on one side, away from the backlight source, of the third color quantum dot color film;
at any adjacent multiple sub-pixel region boundaries, at least two of the first color resistor, the second color resistor and the third color resistor are overlapped to form the black matrix.
10. The display panel according to claim 9,
the first color sub-pixel region is octagonal in shape; the second color sub-pixel region is hexagonal in shape;
the shape of the third color sub-pixel area is a quadrangle;
the third color sub-pixel region comprises a first edge, the second color sub-pixel region comprises a second edge near the first edge, and the second edge is parallel to the first edge;
the third color sub-pixel region further comprises a third edge adjacent to the first edge, the first color sub-pixel region comprises a fourth edge near the third edge, the fourth edge is parallel to the third edge;
the second color sub-pixel region further includes a fifth edge adjacent to the second edge, the first color sub-pixel region further includes a sixth edge adjacent to the fourth edge, and the fifth edge is parallel to the sixth edge.
11. A display device characterized by comprising the display panel according to any one of claims 1 to 10.
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| CN111490090B (en) * | 2020-04-30 | 2022-12-16 | 上海天马微电子有限公司 | Display panel and display device |
| CN111524463B (en) * | 2020-05-29 | 2023-04-21 | 京东方科技集团股份有限公司 | Display panel, manufacturing method thereof and display device |
| CN111627345B (en) * | 2020-06-09 | 2022-05-03 | 上海天马微电子有限公司 | Display panel, manufacturing method thereof and display device |
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| CN112614957B (en) * | 2020-12-07 | 2023-07-18 | 厦门天马微电子有限公司 | Display panel and display device |
| CN113093436A (en) * | 2021-03-25 | 2021-07-09 | 惠州市华星光电技术有限公司 | Quantum dot film and display panel |
| CN113178138A (en) * | 2021-04-23 | 2021-07-27 | 京东方科技集团股份有限公司 | Display panel, display device and preparation method thereof |
| CN114384722A (en) * | 2021-11-26 | 2022-04-22 | 北海惠科光电技术有限公司 | Display panel preparation method, color film substrate and display panel |
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