CN114709345A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN114709345A CN114709345A CN202210327011.5A CN202210327011A CN114709345A CN 114709345 A CN114709345 A CN 114709345A CN 202210327011 A CN202210327011 A CN 202210327011A CN 114709345 A CN114709345 A CN 114709345A
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- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/86—Arrangements for improving contrast, e.g. preventing reflection of ambient light
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- H—ELECTRICITY
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/122—Pixel-defining structures or layers, e.g. banks
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Abstract
The invention discloses a display panel and a display device, wherein the display panel comprises: a substrate; the pixel structure comprises a first pixel unit and a second pixel unit which are arranged on one side of a substrate, wherein the first pixel unit and the second pixel unit comprise a pixel definition layer and a light shielding layer; the orthographic projection of the light shielding layer opening on the substrate is a first projection, the orthographic projection of the pixel opening opposite to the light shielding layer opening on the substrate is a second projection, all points located inside the first projection and outside the second projection form a graph structure, and the graph structure of the first pixel unit is different from the graph structure of the second pixel unit in shape. The regularity of the light emission of the reflected light of the ambient light is disturbed, the diffraction intensity is further weakened, the color separation problem of the display panel under the irradiation of the external light is improved, and the display effect of the display panel is improved.
Description
Technical Field
The invention belongs to the technical field of electronic products, and particularly relates to a display panel and a display device.
Background
In the existing display panel, a POL-less technology, which uses a Color Filter (CF) instead of a Polarizer (POL), reduces the luminous flux of ambient light entering the display panel by using a black matrix and a Filter structure instead of a circular polarizer. However, due to the structural limitation of the existing display panel, the display panel applying the POL-less technology has an obvious color separation phenomenon under the irradiation of ambient light, which affects the use experience of users.
Therefore, a new display panel and a new display device are needed.
Disclosure of Invention
The embodiment of the invention provides a display panel and a display device, wherein the shape of the graph structure of a first pixel unit is different from that of the graph structure of a second pixel unit, so that the regularity of reflected light of ambient light is disturbed, the diffraction intensity is further weakened, the color separation problem of the display panel under the irradiation of external light is improved, and the display effect of the display panel is improved.
In a first aspect, an embodiment of the present invention provides a display panel, including: a substrate; the pixel structure comprises a first pixel unit and a second pixel unit which are arranged on one side of a substrate, wherein the first pixel unit and the second pixel unit comprise a pixel definition layer and a light shielding layer; the orthographic projection of the light shielding layer opening on the substrate is a first projection, the orthographic projection of the pixel opening opposite to the light shielding layer opening on the substrate is a second projection, all points located in the first projection and outside the second projection form a graph structure, and the graph structure of the first pixel unit is different from the graph structure of the second pixel unit in shape.
In a second aspect, an embodiment of the present invention provides a display device, including: the display panel is the display panel in any one of the embodiments.
Compared with the related art, the display panel provided by the embodiment of the invention comprises a substrate, a first pixel unit and a second pixel unit, wherein the orthographic projection of the opening of the light shielding layer on the substrate is a first projection, the orthographic projection of the opening of the pixel opposite to the opening of the light shielding layer on the substrate is a second projection, the set of all points positioned in the first projection and outside the second projection forms a graph structure, the graph structure can be understood as a non-overlapped part of the first projection and the second projection in a direction vertical to the plane of the substrate, external ambient light can generate reflected light on some reflective film layers of the display panel after entering the display panel, such as a cathode layer, an anode layer and the like, and due to the different shapes of the graph structure of the first pixel unit and the graph structure of the second pixel unit, the diffraction patterns of the reflected light at the opening of the light shielding layer are different, the regularity of the light emission of the reflected light of the ambient light is disturbed, the diffraction intensity is further weakened, the color separation problem of the display panel under the irradiation of the external light is improved, and the display effect of the display panel is improved.
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 of the present invention will be briefly described below, and it is obvious that the drawings described below 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 diagram illustrating a structure of a film layer of a display panel according to an embodiment of the present invention;
FIG. 2 is a diagram of a projection position of a display panel provided in accordance with an embodiment of the present invention;
FIG. 3 is a diagram of a projection position of a display panel provided in accordance with another embodiment of the present invention;
FIG. 4 is an enlarged partial view of one embodiment provided at A in FIG. 3;
FIG. 5 is an enlarged partial view of the alternative embodiment at A in FIG. 3;
FIG. 6 is an enlarged fragmentary view of a further embodiment provided at A in FIG. 3;
FIG. 7 is a diagram of a projection position of a display panel provided in accordance with yet another embodiment of the present invention;
FIG. 8 is a diagram of a projection position of a display panel provided in accordance with yet another embodiment of the present invention;
fig. 9 is a diagram of a projection position of a display panel provided in accordance with still another embodiment of the present invention;
fig. 10 is a diagram of a projection position of a display panel according to still another embodiment of the present invention;
fig. 11 is a diagram of a projection position of a display panel provided according to still another embodiment of the present invention;
fig. 12 is a diagram of a projection position of a display panel provided according to still another embodiment of the present invention.
Detailed Description
Features and exemplary embodiments of various aspects of the present invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
In the related art, a black matrix and a filter structure are used to replace a circular polarizer, so that the luminous flux of ambient light entering a display panel is reduced, but due to the existence of the black matrix, reflected light generated when external light enters the display panel can form pinhole diffraction, and the inventor finds that when the pixel definition layer opening and the black matrix opening of each pixel are the same, diffraction enhancement can be caused, and the problem of color separation can be caused.
In order to solve the above problem, embodiments of the present invention provide a display panel, in which the shape of the pattern structure of the first pixel unit is different from the shape of the pattern structure of the second pixel unit, so as to weaken the diffraction intensity, improve the color separation problem of the display panel under the irradiation of the external light, and improve the experience effect of the display panel.
The following describes the display panel and the display device according to the embodiments of the present invention with reference to fig. 1 to 12.
Referring to fig. 1 to 3, fig. 1 is a film structure diagram of a display panel according to an embodiment of the invention; FIG. 2 is a diagram of a projection position of a display panel provided in accordance with an embodiment of the present invention; fig. 3 is a diagram of a projection position of a display panel according to another embodiment of the present invention.
An embodiment of the present invention provides a display panel, including: a substrate 1; the pixel structure comprises a first pixel unit P1 and a second pixel unit P2, wherein the first pixel unit P1 and the second pixel unit P2 are arranged on one side of a substrate 1, the first pixel unit P1 and the second pixel unit P2 comprise a pixel definition layer 2 and a light shielding layer 3, the light shielding layer 3 is arranged on one side, away from the substrate 1, of the pixel definition layer 2, the pixel definition layer 2 comprises a pixel opening K2, and the light shielding layer 3 comprises a light shielding layer opening K1 corresponding to the pixel opening K2; the orthographic projection of the light-shielding layer opening K1 on the substrate 1 is a first projection, the orthographic projection of the pixel opening K2 opposite to the light-shielding layer opening K1 on the substrate 1 is a second projection, all the sets of points located inside the first projection and outside the second projection form a graphic structure M, and the graphic structure M of the first pixel unit P1 and the graphic structure M of the second pixel unit P2 are different in shape.
The display panel provided by the embodiment of the invention comprises a substrate 1, a first pixel unit P1 and a second pixel unit P2, wherein the orthographic projection of a shading layer opening K1 on the substrate 1 is a first projection, the orthographic projection of a pixel opening K2 opposite to the shading layer opening K1 on the substrate 1 is a second projection, the set of all points positioned in the first projection and outside the second projection form a graph structure M, the graph structure M can be understood as a non-overlapping part of the first projection and the second projection in the direction vertical to the plane of the substrate 1, and after external ambient light enters the display panel, reflected light such as a cathode layer, an anode layer and the like is generated on some reflective film layers of the display panel, and due to the different shapes of the graph structure M of the first pixel unit P1 and the graph structure M of the second pixel unit P2, the reflected light is emitted from the first pixel unit P1 and the second pixel unit P2 at the shading layer opening K1, the regularity of reflected light of ambient light is disturbed, so that the diffraction intensity is weakened, the color separation problem of the display panel under the irradiation of external light is improved, and the display effect of the display panel is improved.
It should be noted that the shape of the pattern structure M of the first pixel unit P1 is different from that of the pattern structure M of the second pixel unit P2, and the different shapes specifically mean that the patterns may be similar patterns, for example, the pattern structure M of the first pixel unit P1 and the pattern structure M of the second pixel unit P2 are both circular rings, but the sizes of the two patterns are different, or the patterns may not be similar patterns, for example, the pattern structure M of the first pixel unit P1 is a square ring shape, and the pattern structure M of the second pixel unit P2 is a circular ring shape.
The first pixel unit P1 and the second pixel unit P2 may refer to two separate sub-pixels of the display panel, and both may be sub-pixels of the same color, sub-pixels of different colors, or sub-pixels of two different colors of the display panel, and are not particularly limited.
Optionally, the first pixel unit P1 and the second pixel unit P2 further include an anode block, an organic light emitting layer, and a cathode layer, where the anode block, the organic light emitting layer, and the cathode layer are at least partially disposed in the pixel opening K2, and the cathode layer usually covers the entire surface of the pixel defining layer 2 on the side away from the substrate 1, and the cathode layer usually adopts a material with a low work function, so as to facilitate electron injection, and in addition, can also reduce heat generated during operation, and prolong the service life of the light emitting device. The cathode layer may be made of one of metal materials such as silver (Ag), aluminum (Al), lithium (Li), magnesium (Mg), ytterbium (Yb), calcium (Ca), or indium (In), or an alloy of the above metal materials, such as magnesium-silver (Mg/Ag) and lithium-aluminum (Li/Al), which is not limited In this embodiment. Since the cathode layer is generally made of a metal layer having a high reflectivity, it can reflect external light.
Optionally, the display device further comprises a pixel circuit electrically connected with the anode block, wherein the pixel circuit comprises a driving transistor TFT. It should be noted that the driving transistor TFT may specifically adopt a thin film transistor, the thin film transistor includes a gate G, a source S, and a drain D, and the material of the drain D, the source S, and the gate G may include one or a combination of molybdenum, titanium, aluminum, copper, and the like. The gate G of the thin film transistor is generally used for receiving a control signal, so that the thin film transistor is turned on or off under the control of the control signal. The source S of the thin film transistor is connected with the anode block to control the normal light emission of the pixel unit.
Optionally, the external ambient light is reflected by the cathode layer and emitted from the pixel opening K2 to the light shielding layer opening K1, and the shape of the pattern structure M of the first pixel unit P1 is different from that of the pattern structure M of the second pixel unit P2, that is, the diffraction patterns of the reflected light emitted from the first pixel unit P1 and the second pixel unit P2 at the light shielding layer opening K1 are different, so that the diffraction intensity is reduced, and the color separation problem of the display panel under the irradiation of the external light is improved.
In some optional embodiments, the opening area of the light shielding layer opening K1 is larger than the opening area of the corresponding pixel opening K2.
It can be understood that the opening area of the light shielding layer opening K1 is larger than the opening area of the corresponding pixel opening K2, so as to ensure the light output amount of the display panel, and the first projection of the light shielding layer opening K1 can completely cover the second projection of the pixel opening K2, so as to form different pattern structures M. In addition, since the aperture area of the pixel aperture K2 determines the aperture ratio of the pixel unit and is not easy to change, in the present embodiment, the aperture area of the light-shielding layer aperture K1 may be increased while keeping the aperture area of the pixel aperture K2 unchanged, so that the first pixel unit P1 and the second pixel unit P2 form different pattern structures M.
Referring to fig. 4, fig. 4 is a partial enlarged view of an embodiment at a in fig. 3. In some optional embodiments, in the first pixel unit P1, along the first direction X, the distances from the edge of the light shielding layer opening K1 to the edge of the pixel opening K2 are a first distance a1 and a second distance a2, respectively; in the second pixel unit P2, the distances from the edge of the light-shielding layer opening K1 to the edge of the pixel opening K2 along the first direction X are a third distance a3 and a fourth distance a4, respectively; wherein the first distance a1 is not equal to the third distance a 3.
In this embodiment, referring to fig. 4, in the first pixel unit P1, the first distance a1 may be understood as a distance from an edge of the left light shielding layer opening K1 to an edge of the pixel opening K2, the first distance a1 may be understood as a distance from an edge of the right light shielding layer opening K1 to an edge of the pixel opening K2, in the second pixel unit P2, the third distance a3 may be understood as a distance from an edge of the left light shielding layer opening K1 to an edge of the pixel opening K2, and the fourth distance a4 may be understood as a distance from an edge of the right light shielding layer opening K1 to an edge of the pixel opening K2, although the first distance a1, the second distance a2, the third distance a3, and the fourth distance a4 are only exemplified in fig. 4, and the relative positions of the first pixel unit P1, the second pixel unit P2 and the first direction X are not limited to those shown in fig. 4.
In this embodiment, by making the first distance a1 not equal to the third distance a3, the shapes of the pattern structure M of the first pixel unit P1 and the pattern structure M of the second pixel unit P2 may be different, and when the first distance a1 is not equal to the third distance a3, the second distance a2 may be equal to the fourth distance a4, or may be unequal, and by adjusting the specific values of the first distance a1, the second distance a2, the third distance a3, and the fourth distance a4, the embodiment in which the shapes of the pattern structure M of the first pixel unit P1 and the pattern structure M of the second pixel unit P2 are different may be further enriched.
Referring to fig. 5, fig. 5 is a partial enlarged view of another embodiment at a in fig. 3. In some alternative embodiments, the sum of the first distance a1 and the second distance a2 is equal to the sum of the third distance a3 and the fourth distance a 4.
It is understood that, in the present embodiment, when the pixel openings K2 and the light-shielding layer openings K1 of the first pixel unit P1 and the second pixel unit P2 adopt the same shape and size, the sum of the first distance a1 and the second distance a2 is equal to the sum of the third distance a3 and the fourth distance a4, specifically, the light-shielding layer opening K1 is shifted from the pixel opening K2 by a certain distance along the first direction X, and the shifting distances of the light-shielding layer openings K1 in the first pixel unit P1 and the second pixel unit P2 are different, so as to form the pattern structure M with different shapes. The embodiment of forming the pattern structure M having the different shape by offsetting the light-shielding layer opening K1 by a certain distance in the first direction X with respect to the pixel opening K2 is facilitated, and the specific offset distance is facilitated to be adjusted.
To further enrich the implementation of the graphics architecture M that can be implemented in different shapes, please refer to fig. 6, where fig. 6 is a partial enlarged view provided by another embodiment at a in fig. 3. In some alternative embodiments, in the first pixel unit P1, the geometric center j1 of the orthographic projection of the light-shielding layer opening K1 on the substrate 1 and the geometric center j2 of the orthographic projection of the pixel opening K2 on the substrate 1 are not coincident; in the second pixel unit P2, the geometric center j1 of the orthographic projection of the light-shielding layer opening K1 on the substrate 1 and the geometric center j2 of the orthographic projection of the pixel opening K2 on the substrate 1 coincide.
In the present embodiment, the light-shielding layer opening K1 of the first pixel unit P1 may be offset by a certain distance in any direction with respect to the pixel opening K2, and is not limited to the first direction X, so that in the first pixel unit P1, the geometric center j1 of the orthographic projection of the light-shielding layer opening K1 on the substrate 1 and the geometric center j2 of the orthographic projection of the pixel opening K2 on the substrate 1 do not coincide. The light shielding layer opening K1 of the second pixel unit P2 may not be shifted with respect to the pixel opening K2, so that the first pixel unit P1 and the second pixel unit P2 have different graphic structures.
Optionally, at least one of the shift direction and the shift distance of the light shielding layer opening K1 of the first pixel unit P1 and the second pixel unit P2 is different. For example, the light-shielding layer opening K1 of the first pixel unit P1 is offset from the pixel opening K2 by a certain distance along the first direction X, and the light-shielding layer opening K1 of the second pixel unit P2 is offset from the pixel opening K2 by a certain distance along the second direction Y, where the first direction X and the second direction Y intersect with each other, as long as the shape of the pattern structure M of the first pixel unit P1 is different from the shape of the pattern structure M of the second pixel unit P2.
Referring to fig. 7, fig. 7 is a diagram illustrating a projection position of a display panel according to another embodiment of the present invention; in some alternative embodiments, orthographic projections of the symmetry axes of the light shielding layer openings K1 and the corresponding pixel openings K2 on the substrate 1 are not coincident.
It should be noted that, in order to ensure the regularity of the light emitted from the display panel, the light-shielding layer opening K1 and the pixel opening K2 are generally in an axisymmetric pattern, such as a rectangle, a circle, etc., for example, the rectangle has two symmetric axes, when the light-shielding layer opening K1 and the corresponding pixel opening K2 are both in a rectangle, the orthographic projection of at least one symmetric axis of the light-shielding layer opening K1 and the corresponding pixel opening K2 on the substrate 1 is not overlapped, for example, the first symmetric axis z1 and the second symmetric axis z2 in the figure are not overlapped, so as to adjust the specific shape of the graphic structure M, thereby further enriching the embodiments that can implement the graphic structures M with different shapes. Of course, the light-shielding layer apertures K1 and the pixel apertures K2 may be formed in other axisymmetric patterns, and are not particularly limited.
Referring to fig. 8, fig. 8 is a diagram illustrating a projection position of a display panel according to another embodiment of the present invention; in some alternative embodiments, the first and second pixel cells P1 and P2 are different in color; the first pixel unit P1 includes N different pattern structures M; the second pixel unit P2 includes M kinds of pattern structures M with different shapes; where M ≠ N, M, N are positive integers greater than or equal to 2.
The color difference between the first pixel unit P1 and the second pixel unit P2 means that the first pixel unit P1 and the second pixel unit P2 are sub-pixels with two different colors, the display panel includes a plurality of first pixel units P1 and a plurality of second pixel units P2, and the first pixel unit P1 includes N different shapes of pattern structures M, that is, the shape of the pattern structure M of each first pixel unit P1 may be different, and the N different shapes of pattern structures M are formed together. Similarly, the shapes of the pattern structures M of the second pixel units P2 may be different, and the M pattern structures M with different shapes are formed together, so that by making M ≠ N, combinations of the pattern structures M of the single first pixel unit P1 and the single second pixel unit P2 with different shapes are increased, regularity of reflected light of ambient light is further disturbed, and diffraction intensity is weakened.
As shown in fig. 2, in some alternative embodiments, the orthographic shape of the light-shielding layer opening K1 on the substrate 1 and the orthographic shape of the corresponding pixel opening K2 on the substrate 1 are similar patterns.
It should be noted that similar figures in the embodiments of the present invention specifically refer to figures of the same shape with different proportions. For example, the orthographic projection shape of the light-shielding layer opening K1 on the substrate 1 and the orthographic projection shape of the corresponding pixel opening K2 on the substrate 1 are both rectangular, but the length and width of the orthographic projection of the light-shielding layer opening K1 on the substrate 1 are both fixed multiples, for example 1.5 times, of the orthographic projection length and width of the corresponding pixel opening K2 on the substrate 1, namely, the orthographic projection of the light-shielding layer opening K1 on the substrate 1 is increased in proportion to the orthographic projection of the corresponding pixel opening K2 on the substrate 1, and the pattern structure M with different shapes is formed by adjusting the proportion between the orthographic projection of the light-shielding layer opening K1 on the substrate 1 and the orthographic projection of the corresponding pixel opening K2 on the substrate 1.
Referring to fig. 9 and 10, fig. 9 is a diagram illustrating a projection position of a display panel according to another embodiment of the present invention; fig. 10 is a diagram of a projection position of a display panel according to still another embodiment of the present invention. In some alternative embodiments, the orthographic projection of the light shielding layer opening K1 on the substrate 1 and the orthographic projection of the corresponding pixel opening K2 on the substrate 1 are different in shape.
It is understood that, in the present embodiment, the orthographic projection of the light-shielding layer opening K1 on the substrate 1 and the orthographic projection of the corresponding pixel opening K2 on the substrate 1 are not similar patterns, for example, the orthographic projection of the light-shielding layer opening K1 on the substrate 1 is a circle, the orthographic projection of the corresponding pixel opening K2 on the substrate 1 is a polygon, as shown in fig. 10, or as shown in fig. 9, the orthographic projection of the light-shielding layer opening K1 on the substrate 1 is a polygon, the orthographic projection of the corresponding pixel opening K2 on the substrate 1 is a circle, etc. The orthographic projection shapes of the light-shielding layer openings K1 and the pixel openings K2 on the substrate 1 are at least one of a polygon, a circle, and an ellipse, as long as the orthographic projection shapes of the light-shielding layer openings K1 on the substrate 1 are different from the orthographic projection shapes of the corresponding pixel openings K2 on the substrate 1.
In order to make the shapes of the graphic structures M of the first and second pixel units P1 and P2 different, it may be implemented by adjusting the areas of the graphic structures M of the first and second pixel units P1 and P2, specifically, the areas of the graphic structures M of the first and second pixel units P1 and P2 are different. Specifically, the orthographic projection of the light-shielding layer opening K1 on the substrate 1 and the orthographic projection shape and size of the corresponding pixel opening K2 on the substrate 1 can be adjusted.
As shown in fig. 7, in some alternative embodiments, the pixel openings K2 are arranged in a matrix, the light-shielding layer opening K1 corresponding to the pixel opening K2 includes a first axis of symmetry z1, and the pixel opening K2 includes a second axis of symmetry z 2; the rotation angle between the orthographic projection of the first axis of symmetry z1 on the substrate 1 relative to the orthographic projection of the corresponding second axis of symmetry z2 on the substrate 1 is a preset rotation angle α, and the preset rotation angle α of the first pixel cell P1 is different from the preset rotation angle α of the second pixel cell P2.
It should be noted that, the matrix arrangement of the pixel apertures K2 specifically means that the pixel apertures K2 are regularly and conventionally arranged, and the position and the size of the pixel apertures K2 are not changed, that is, in this embodiment, only the light shielding layer aperture K1 is rotated by a predetermined angle relative to the corresponding pixel aperture K2, that is, the preset rotation angle α is mentioned above, and the pixel apertures K2 themselves are not changed, so as to ensure that the aperture ratio is not changed, and further ensure the display effect of the display panel.
In this embodiment, the preset rotation angle α of the first pixel unit P1 is different from the preset rotation angle α of the second pixel unit P2, that is, the rotation angle of the light-shielding layer opening K1 of the first pixel unit P1 relative to the corresponding pixel opening K2 is different from the rotation angle of the light-shielding layer opening K1 of the second pixel unit P2 relative to the corresponding pixel opening K2, so that the pattern structures M of the first pixel unit P1 and the second pixel unit P2 are different, and the diffraction problem is improved.
In order to avoid mutual interference of reflected light between two adjacent first pixel units P1, in some alternative embodiments, along the first direction X, the preset rotation angles α of the two adjacent first pixel units P1 are different, that is, the rotation angles of the light shielding layer openings K1 of the two adjacent first pixel units P1 with respect to the corresponding pixel openings K2 are different, so that the pattern structures M of the two adjacent first pixel units P1 are different, and further the diffraction patterns corresponding to the light shielding layer openings K1 of the two adjacent first pixel units P1 are different, so as to disturb regularity of the reflected light of ambient light, further weaken diffraction intensity, and improve the color separation problem of the display panel under external light.
Similarly, the preset rotation angle α of two adjacent second pixel units P2 can be defined, and specifically, the preset rotation angle α of two adjacent second pixel units P2 is different along the first direction X. Therefore, the graphic structures M of two adjacent second pixel units P2 are different, and further the diffraction patterns corresponding to the light-shielding layer openings K1 of two adjacent second pixel units P2 are different, it can be understood that when the graphic structures M of two adjacent first pixel units P1, two adjacent second pixel units P2, the first pixel unit P1 and the second pixel unit P2 are different, that is, the graphic structures M of all the pixel units of the whole display panel are different, regularity of light output of reflected light on the whole display panel is easily disturbed, and further the color separation problem of the whole display panel under external light irradiation is improved.
In order to ensure that the discrimination between the pattern structures M of the adjacent two first pixel units P1 is sufficient or the discrimination between the pattern structures M of the adjacent two second pixel units P2 is sufficient, in some alternative embodiments, the difference between the preset rotation angles α of the adjacent two first pixel units P1 along the first direction X is greater than or equal to 2 °; and/or, along the first direction X, the difference between the preset rotation angles α of two adjacent second pixel cells P2 is greater than or equal to 2 °.
It can be understood that the larger the difference between the preset rotation angles α, the larger the difference between the corresponding pattern structures M, the larger the difference between the corresponding diffraction patterns, and the better the improvement effect on the diffraction problem, and in this embodiment, the improvement effect on the diffraction problem is ensured by making the difference between the preset rotation angles α of the two adjacent first pixel units P1 and/or the two adjacent second pixel units P2 greater than or equal to 2 ° to ensure that the degree of discrimination between the corresponding pattern structures M is sufficiently large.
Referring to fig. 11 and 12, fig. 11 is a diagram illustrating a projection position of a display panel according to another embodiment of the present invention; fig. 12 is a diagram of a projection position of a display panel provided according to still another embodiment of the present invention.
In some optional embodiments, the display panel further includes a third pixel unit P3, wherein colors of the first pixel unit P1, the second pixel unit P2 and the third pixel unit P3 are different, and a shape of the graphic structure M of the third pixel unit P3 is different from a shape of the graphic structure M of the first pixel unit P1 and the second pixel unit P2.
It can be understood that, the first pixel unit P1, the second pixel unit P2, and the third pixel unit P3 may be respectively one of red, blue, and green colors, so as to achieve color display of the display panel, and the shape of the graphic structure M of the third pixel unit P3 is different from the shape of the graphic structure M of the first pixel unit P1 and the second pixel unit P2, that is, the shapes of the graphic structures M of the first pixel unit P1, the second pixel unit P2, and the third pixel unit P3 are different, so that the diffraction patterns of the reflected light emitted from the first pixel unit P1, the second pixel unit P2, and the third pixel unit P3 at the light shielding layer opening K1 are different, and the color separation problem of the display panel is improved. In fig. 11, the light-shielding layer aperture K1 and the corresponding pixel aperture K2 are illustrated as rectangles, and in fig. 12, the light-shielding layer aperture K1 and the corresponding pixel aperture K2 are illustrated as circles, but the shapes of the light-shielding layer aperture K1 and the corresponding pixel aperture K2 are not limited to the examples shown in fig. 11 and 12.
The embodiment of the invention also provides a display device which comprises the display panel in any one of the embodiments.
The display device provided by the embodiment of the invention can be applied to a mobile phone and can also be any electronic product with a display function, including but not limited to the following categories: the touch screen display system comprises a television, a notebook computer, a desktop display, a tablet computer, a digital camera, an intelligent bracelet, intelligent glasses, a vehicle-mounted display, medical equipment, industrial control equipment, a touch interaction terminal and the like, and the embodiment of the invention is not particularly limited in this respect.
As described above, only the specific embodiments of the present invention are provided, and it is clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the system, the module and the unit described above may refer to the processes in the foregoing method embodiments, and are not described herein again. It should be understood that the scope of the present invention is not limited thereto, and any equivalent modifications or substitutions can be easily made by those skilled in the art within the technical scope of the present invention.
It should also be noted that the exemplary embodiments mentioned in this patent describe some methods or systems based on a series of steps or devices. However, the present invention is not limited to the order of the above-described steps, that is, the steps may be performed in the order mentioned in the embodiments, may be performed in an order different from the order in the embodiments, or may be performed simultaneously.
Claims (16)
1. A display panel, comprising:
a substrate;
the pixel structure comprises a first pixel unit and a second pixel unit which are arranged on one side of a substrate, wherein the first pixel unit and the second pixel unit comprise a pixel definition layer and a light shielding layer;
the orthographic projection of the light shielding layer opening on the substrate is a first projection, the orthographic projection of the pixel opening opposite to the light shielding layer opening on the substrate is a second projection, all points located in the first projection and outside the second projection form a graph structure, and the graph structure of the first pixel unit is different from the graph structure of the second pixel unit in shape.
2. The display panel according to claim 1, wherein an aperture area of the light-shielding layer aperture is larger than an aperture area of the corresponding pixel aperture.
3. The display panel according to claim 2, wherein in the first pixel unit, distances from the light shielding layer opening edge to the pixel opening edge in a first direction are a first distance and a second distance, respectively;
in the second pixel unit, along a first direction, distances from the edge of the light shielding layer opening to the edge of the pixel opening are a third distance and a fourth distance respectively;
wherein the first distance is not equal to the third distance.
4. The display panel according to claim 3, wherein a sum of the first distance and the second distance is equal to a sum of the third distance and the fourth distance.
5. The display panel according to claim 1, wherein in the first pixel unit, a geometric center of an orthographic projection of the light shielding layer opening on the substrate and a geometric center of an orthographic projection of the pixel opening on the substrate do not coincide;
in the second pixel unit, a geometric center of an orthographic projection of the light shielding layer opening on the substrate and a geometric center of an orthographic projection of the pixel opening on the substrate coincide.
6. The display panel according to claim 1, wherein orthographic projections of the light-shielding layer openings and the corresponding pixel openings on the substrate do not coincide.
7. The display panel according to claim 1, wherein the first pixel unit and the second pixel unit are different in color;
the first pixel unit comprises N graphic structures with different shapes;
the second pixel unit comprises M graphic structures with different shapes;
where M ≠ N, M, N are positive integers greater than or equal to 2.
8. The display panel according to claim 1, wherein an orthogonal projection shape of the light shielding layer opening on the substrate and an orthogonal projection shape of the corresponding pixel opening on the substrate are similar patterns.
9. The display panel according to claim 1, wherein an orthogonal projection of the light-shielding layer opening on the substrate and an orthogonal projection of the corresponding pixel opening on the substrate are different in shape.
10. The display panel according to claim 9, wherein an orthogonal projection shape of the light-shielding layer opening and the pixel opening on the substrate is at least one of a polygon, a circle, and an ellipse.
11. The display panel according to claim 1, wherein the pattern structure of the first pixel unit and the pattern structure of the second pixel unit have different areas.
12. The display panel according to claim 1, wherein the pixel openings are arranged in a matrix, the light-shielding layer openings corresponding to the pixel openings include a first axis of symmetry, and the pixel openings include a second axis of symmetry;
the rotation angle between the orthographic projection of the first symmetry axis on the substrate and the orthographic projection of the corresponding second symmetry axis on the substrate is a preset rotation angle, and the preset rotation angle of the first pixel unit is different from the preset rotation angle of the second pixel unit.
13. The display panel according to claim 12, wherein the preset rotation angles of two adjacent first pixel units are different along a first direction; and/or the presence of a gas in the gas,
along the first direction, the preset rotation angles of two adjacent second pixel units are different.
14. The display panel according to claim 13, wherein along the first direction, a difference between the preset rotation angles of two adjacent first pixel units is greater than or equal to 2 °; and/or the presence of a gas in the gas,
along the first direction, a difference between the preset rotation angles of two adjacent second pixel units is greater than or equal to 2 °.
15. The display panel according to claim 1, further comprising a third pixel unit, wherein colors of the first pixel unit, the second pixel unit, and the third pixel unit are different, and a pattern structure of the third pixel unit is different from a pattern structure of the first pixel unit and a pattern structure of the second pixel unit.
16. A display device characterized by comprising the display panel according to any one of claims 1 to 15.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210327011.5A CN114709345A (en) | 2022-03-30 | 2022-03-30 | Display panel and display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210327011.5A CN114709345A (en) | 2022-03-30 | 2022-03-30 | Display panel and display device |
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| CN114709345A true CN114709345A (en) | 2022-07-05 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114927553A (en) * | 2022-07-14 | 2022-08-19 | 北京京东方技术开发有限公司 | Display substrate, preparation method thereof and display device |
| WO2024031888A1 (en) * | 2022-08-11 | 2024-02-15 | 昆山国显光电有限公司 | Display panel and display apparatus |
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2022
- 2022-03-30 CN CN202210327011.5A patent/CN114709345A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114927553A (en) * | 2022-07-14 | 2022-08-19 | 北京京东方技术开发有限公司 | Display substrate, preparation method thereof and display device |
| CN114927553B (en) * | 2022-07-14 | 2022-11-01 | 北京京东方技术开发有限公司 | Display substrate, preparation method thereof and display device |
| WO2024012148A1 (en) * | 2022-07-14 | 2024-01-18 | 京东方科技集团股份有限公司 | Display substrate and preparation method therefor, and display apparatus |
| WO2024031888A1 (en) * | 2022-08-11 | 2024-02-15 | 昆山国显光电有限公司 | Display panel and display apparatus |
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