Display panel and display device

Abstract

The present application discloses a display panel and a display device. The display panel includes a light-emitting layer and a filter layer, the light-emitting layer including a plurality of light-emitting pixels, the light-emitting pixels at least including a first light-emitting sub-pixel emitting a first color light; the filter layer is arranged on the light-emitting layer and is used to filter the incident first color light; wherein the filter layer adjusts the color coordinates of the first color light by filtering the wavelength range of the incident first color light. The present application changes the color coordinates of the first color light by the filter layer arranged on the light-emitting layer, thereby changing the light gamut of the display panel.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display panel and a display device. Background Art

[0002] In recent years, as display-related technologies continue to mature, color display panels have been widely used in indoor and outdoor display applications. Indoor display is short in viewing distance, and the content has high requirements for display effects. Color display panels need to improve their color gamut and color consistency, which requires changing the luminous color gamut of the display panel. Summary of the invention

[0003] The main purpose of the present application is to provide a display panel and a display device to change the luminous color gamut of the display panel.

[0004] To achieve the above-mentioned purpose, a technical solution adopted by the present application is to provide a display panel, which includes a light-emitting layer and a filter layer:

[0005] A light-emitting layer, the light-emitting layer comprising a plurality of light-emitting pixels, the light-emitting pixels comprising at least a first light-emitting sub-pixel emitting a first color light;

[0006] A filter layer, disposed on the light-emitting layer, for filtering the incident light of the first color;

[0007] The filter layer adjusts the color coordinates of the first color light by filtering the wavelength range of the incident first color light.

[0008] In order to achieve the above-mentioned purpose, another technical solution adopted by the present application is to provide a display device, which includes the above-mentioned display panel.

[0009] Through the above scheme, the beneficial effect of the present application is: the filter layer arranged on the light-emitting layer can change the wavelength range of the first color light, filter out the short wavelengths in the first color light wavelength, thereby changing the color coordinates of the first color light, thereby changing the light-emitting color gamut of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0011] Figure 1 is a schematic structural diagram of an embodiment of a display panel provided by the present application;

[0012] Figure 2 is a schematic structural diagram of another embodiment of a display panel provided by the present application;

[0013] Figure 3 is a schematic diagram of light filtering of a band-stop filter layer in another embodiment of a display panel provided by the present application;

[0014] Figure 4 is a schematic diagram of the effect of disposing a filter layer in a display panel in another embodiment of the display panel provided by the present application;

[0015] Figure 5 is a schematic diagram of light at different angles incident on the filter layer in another embodiment of the display panel provided by the present application;

[0016] Figure 6 is a schematic diagram of the relationship between the transmittance of the filter layer and the wavelength under different incident angles of light in another embodiment of the display panel provided by the present application;

[0017] Figure 7 is a structural schematic diagram of a light shielding frame in another embodiment of a display panel provided by the present application;

[0018] Figure 8 is a structural schematic diagram of a light shielding frame in another embodiment of a display panel provided by the present application;

[0019] Fig. 9 is a structural schematic diagram of a light shielding frame in another embodiment of a display panel provided by the present application;

[0020] Fig.10 is a schematic diagram of diffusion results of a surface microstructure diffusion film in another embodiment of a display panel provided by the present application;

[0021] Fig.11 is a structural schematic diagram of another embodiment of a display panel provided by the present application;

[0022] Fig.12 is a schematic diagram of light transmission in another embodiment of a display panel provided by the present application;

[0023] Fig.13 is a schematic diagram of the positions of adhesive applied by dispensing in another embodiment of the display panel provided by the present application;

[0024] Fig.14 is a schematic diagram of the coating position of the continuous adhesive in another embodiment of the display panel provided by the present application;

[0025] Fig.15 is a schematic structural diagram of a light-emitting layer in another embodiment of a display panel provided in the present application;

[0026] Fig.16is a schematic diagram of a process for adjusting the current and light-emitting area of ​​a first light-emitting sub-pixel in another embodiment of a display panel provided by the present application;

[0027] Fig.17 It is a structural schematic diagram of an embodiment of a display device provided in the present application. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0029] The terms "first" and "second" in this application are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or components is not limited to the listed steps or components, but further includes steps or components that are not listed, or further includes other steps or components inherent to these processes, methods, products or devices.

[0030] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0031] See also Figure 1 , Figure 1 1 is a schematic structural diagram of an embodiment of a display panel 100 provided in the present application.

[0032] The display panel 100 includes a light emitting layer 110 and a filter layer 120 .

[0033] The display panel 100 may be, but is not limited to, a light emitting diode display panel 100 .

[0034] The light-emitting layer 110 includes a plurality of light-emitting pixels (not shown).

[0035] Among them, a plurality of light-emitting pixels can be configured on the substrate 150. The light-emitting pixels can be arranged on the substrate 150 in a pre-arranged array. The light-emitting pixels can be electrically connected to the substrate 150. The substrate 150 can be rectangular, but can also be square, circular or polygonal. In addition, the size, ratio of the long and short sides, radius and other dimensional parameters of the substrate 150 can also be adjusted according to design requirements. The substrate 150 can be a PCB circuit board or a glass fiber circuit board (FR4). The substrate 150 can also be composed of a base and a printed circuit and a solder joint structure.

[0036] The light-emitting pixel point may include a first light-emitting sub-pixel 111 that emits a first color light, a second light-emitting sub-pixel 112 that emits a second color light, and a third light-emitting sub-pixel that emits a third color light.

[0037] Wherein, the first light-emitting sub-pixel 111 can emit light of any color of red, blue, yellow, green and other light colors. The light-emitting color of the second light-emitting sub-pixel 112 is different from the light-emitting color of the first light-emitting sub-pixel 111, and the second light-emitting sub-pixel 112 can emit light of any color of red, blue, yellow, green and other light colors, wherein the light-emitting color of the third light-emitting sub-pixel 113 can be different from the light-emitting color of the first light-emitting sub-pixel 111 and the light-emitting color of the second light-emitting sub-pixel 112, and the third light-emitting sub-pixel 113 can emit light of any color of red, blue, yellow, green and other light colors. The number of the first light-emitting sub-pixel 111, the second light-emitting sub-pixel 112 and the third light-emitting sub-pixel 113 can be the same or different. The number and position of the first light-emitting sub-pixel 111, the second light-emitting sub-pixel 112 and the third light-emitting sub-pixel 113 can be adjusted according to design requirements.

[0038] The filter layer 120 is disposed on the light emitting layer 110. It is used to change the wavelength range of the first color light. It is understood that the filter layer 120 can also be used to change the wavelength range of the second color light or the wavelength range of the third color light. The filter layer 120 can prevent the short wavelength light in the light emitted by the light emitting pixel from passing through, so that there is no light of a preset wavelength in the light emitted from the filter layer 120. The preset wavelength can have an upper wavelength value or a lower wavelength value. Optionally, as Figure 3 As shown, the filter layer 120 may be of a band-stop type, directly preventing light between a lower limit wavelength value and an upper limit wavelength value from passing through.

[0039] In this embodiment, the filter layer 120 disposed on the light emitting layer 110 changes the wavelength range of the first color light, and / or the wavelength range of the second color light, and / or the wavelength range of the third color light, that is, the wavelength range of the first color light entering the filter layer 120 is different from the wavelength range of the first color light emitting from the filter layer 120; and / or, the wavelength range of the second color light entering the filter layer 120 is different from the wavelength range of the second color light emitting from the filter layer 120; and / or, the wavelength range of the third color light entering the filter layer 120 is different from the wavelength range of the third color light emitting from the filter layer 120. As a result, the color coordinates of the first color light, and / or the color coordinates of the second color light, and / or the color coordinates of the third color light emitted by the display panel are adjusted. In addition, the luminous color gamut of the display panel is improved compared with the luminous color gamut of the display panel without the filter layer, that is, the luminous color gamut of the display panel 100 is increased.

[0040] Furthermore, in a specific embodiment, the first light-emitting sub-pixel 111 emits green light. The filter layer 120 is located in the light-emitting light path of the first light-emitting sub-pixel 111, and can be used to prevent light in a preset wavelength range of the green light wavelength from passing through, thereby changing the wavelength range of the emitted light of the green light, so that the color coordinates of the green light emitted by the display panel 100 are changed, and then the color gamut of the image light emitted by the display panel 100 is changed, so that the light-emitting color gamut range of the display panel 100 with the filter layer 120 added can not only cover the predetermined color gamut range, but also improve the color gamut of the display panel without the filter layer 120 in the prior art. Figure 4 As shown, by setting the filter layer 120, the chromaticity point of the green light can be changed from point A to point B, that is, the color coordinates of the green light are changed, and then the luminous color gamut of the display panel 100 is changed from the first color gamut 1 to the second color gamut 2, and the luminous color gamut of the display panel 100 (that is, the second color gamut 2) can cover the predetermined color gamut 3. The predetermined color gamut 3 can be the sRGB color gamut, the Adobe RGB color gamut, the DCI-P3 color gamut, the NTSC color gamut, etc.

[0041] It is understandable that the filter layer 120 can change the wavelength range of the second color light or the wavelength range of the third color light. The filter layer corresponding to this embodiment is a filter layer with a multi-layer structure, which is used to modify the color of two color lights. At this time, the filter layer includes at least two filter layers, wherein the first filter layer filters part of the wavelength of the first color light and transmits light in the range of other wavelengths to achieve color modification of the first color light; the second filter layer filters part of the wavelength of the second color light and transmits light in the range of other wavelengths to achieve color modification of the second color light.

[0042] Of course, a display panel that requires color modification for the first color light, the second color light, and the third color light all requires color modification. In this case, the corresponding filter layer includes three filter layers, wherein the first filter layer filters part of the wavelength of the first color light, transmits light in a range of other wavelengths, and achieves color modification for the first color light; the second filter layer filters part of the wavelength of the second color light, transmits light in a range of other wavelengths, and achieves color modification for the second color light; the third filter layer filters part of the wavelength of the third color light, transmits light in a range of other wavelengths, and achieves color modification for the third color light.

[0043] In one embodiment, the filter layer 120 may be a multilayer dielectric film. The refractive indexes of two adjacent dielectric films may be different. Furthermore, the multilayer dielectric film may be a band-stop dielectric film.

[0044] The present application uses light detection analysis to find that the multilayer dielectric film has different wavelength selectivity for light with different incident angles. Figure 5 As shown in the figure, incident light ① is incident vertically onto the multilayer dielectric film, and incident light ② is incident obliquely onto the multilayer dielectric film. The ability of two different angles of light to pass through the multilayer dielectric film (i.e., the transmittance of light at different angles on the multilayer dielectric film) is shown in Figure 6 As shown, the transmittance of light of different wavelength ranges in the dielectric film is different for vertical incidence and oblique incidence. Among them, the spectral distribution of light emitted from the multilayer dielectric film can be determined by the following formula: Wherein, I0(λ) is the spectral distribution function of the light emitted from the multilayer dielectric film, θ is the angle of the light incident on the multilayer dielectric film, ρ(θ) is the proportion of light at different incident angles, T(θ,λ) is the spectral transmittance at different incident angles, and I(θ,λ) is the spectral distribution function of the luminous pixel before entering the multilayer dielectric film. If a multilayer dielectric film is set on the light-emitting layer to prevent light within a certain wavelength range from passing through, considering that the multilayer dielectric film has different wavelength selectivity for incident light at different angles, the wavelength ranges of light at different angles emitted by the multilayer dielectric film may be inconsistent, that is, the colors of light at different angles emitted by the multilayer dielectric film are inconsistent, which may cause chromatic aberration problems at different viewing angles.

[0045] See also Figure 2 , Figure 2 1 is a schematic structural diagram of another embodiment of a display panel 100 provided in the present application.

[0046] The display panel 100 includes a light emitting layer 110, a light shielding frame 130 and a filter layer 120. Figure 1 The difference is that a light shielding frame structure 130 is added to solve the chromatic aberration problem caused by the above-mentioned dielectric film filter layer.

[0047] It should be noted that the light shielding frame 130 added in this embodiment can also prevent light crosstalk between different pixel points, that is, the light emitted by different luminous pixel points passes through the optical path space surrounded by the light guide frame of the light shielding frame 130, so that one luminous pixel point corresponds to one light guide frame.

[0048] The present application sets a light shielding frame 130 in the display panel 100. The light shielding frame 130 can be set between the light emitting layer 110 and the filter layer 120. The light shielding frame 130 can include a plurality of light guide frames 131, each light guide frame 131 corresponds to a light emitting pixel point, and the light guide frame 131 forms an optical path space 132. The light emitted by the light emitting pixel point passes through the optical path space 132 and enters the dielectric film filter layer 120. The light shielding frame 130 is used to reduce the incident angle range of the light incident on the dielectric film filter layer 120. In this way, even if the multi-layer dielectric film has different wavelength selectivities for incident light at different angles, since the angle range of the light incident on the dielectric film filter layer 120 becomes smaller, the wavelength range filtered by the dielectric film filter layer 120 is almost consistent, thereby avoiding the filtering error of the dielectric film filter layer and making the degree of change of the color coordinates consistent with the pre-designed degree as much as possible, so that the luminous color gamut range of the display panel 100 can cover the predetermined color gamut range as much as possible, and can avoid the problem of inconsistent colors (color difference) at different viewing angles.

[0049] It is understandable that the inner wall of the light path space 132 formed by the light guide frame 131 can absorb the large-angle incident light of the light-emitting pixel point, eliminate the large-angle light in the light emitted by the light-emitting pixel point, and thus reduce the angle range of the light incident on the filter layer 120. In addition, the angle range of the light incident on the filter layer 120 can be roughly estimated by the height of the inner wall of the light path space 132, the location of the light guide pixel point, and the size of the light exit surface of the light path space 132. For example, Figure 7 As shown, the inner wall of the optical path space 132 may be perpendicular to the filter layer 120. When viewed in a clockwise direction, the angle range of the light incident on the filter layer 120 may be:

[0050] Wherein, d is the size of the luminous pixel (for example: when the luminous pixel is rectangular, the diagonal and one of the length and width of the luminous pixel; when the luminous pixel is circular, the diameter of the luminous pixel, etc.), p is the size of the top surface of the optical path space 132 (when the top surface of the optical path space 132 is circular, the size of the top surface of the optical path space 132 is the diameter of the circle; when the top surface of the optical path space 132 is rectangular, the size of the top surface of the optical path space 132 is the length / width / diagonal length of the rectangle), l is the shortest distance from the luminous pixel to the light absorbing surface 133, and h is the vertical distance from the top of the luminous pixel to the top surface of the optical path space 132. For another example, Figure 8As shown, when the light-emitting pixel point is located at the center of the side of the optical path space 132 facing away from the filter layer 120, the angle range of the light incident on the filter layer 120 can be At this time, the angle range of the light incident on the filter layer 120 can also be Wherein, d is the size of the light-emitting pixel, h is the vertical distance from the light-emitting pixel to the top surface of the optical path space 132 (the connection surface between the light guide frame 131 and the filter layer 120), p is the size of the top surface of the optical path space 132 (when the top surface of the optical path space 132 is circular, the size of the top surface of the optical path space 132 is the diameter of the circle; when the top surface of the optical path space 132 is rectangular, the size of the top surface of the optical path space 132 is the length / width / diagonal length of the rectangle), and e is the wall thickness of the top of the light guide frame 131 (the connection end between the light guide frame 131 and the filter layer 120). After estimating the angle range of the light incident on the filter layer 120, the wavelength range of the light incident on the filter layer 120 can be estimated by the spectral distribution formula of the light emitted from the multi-layer dielectric film. Therefore, the size of the light shielding frame 130 and the position of the light-guiding pixel can be designed according to the wavelength range of the light that needs to be blocked.

[0051] In one embodiment, the inner wall of the light path space 132 formed by the light guide frame 131 can be set as a light absorbing surface 133. The light absorbing surface 133 on the inner wall of the light path space 132 can absorb the light irradiated from the light emitting pixel point to the light guide frame 131, eliminate the large angle light in the light emitted by the light emitting pixel point, and thus reduce the angle range of the light incident on the filter layer 120. The light emitting pixel point can be located at the center of the side of the light path space 132 facing away from the filter layer 120.

[0052] In one embodiment, Fig. 9 As shown, the inner wall of the light path space 132 formed by the light guide frame 131 can be set as a reflective surface 134, and the slope of the reflective surface 134 gradually increases in the direction from the light emitting layer 110 to the filter layer 120. The inner wall of the light path space 132 formed by the light guide frame 131 can reflect the light incident on the inner wall of the light path space 132 of the light emitting pixel point, and because the slope of the reflective surface 134 gradually increases in the direction from the light emitting layer 110 to the filter layer 120, the light reflected from the inner wall of the light path space 132 is closer to being perpendicular to the filter layer 120, so that the light guide frame 131 with such a structure has a collimating effect on the light incident at a large angle (the angle of the light incident at a large angle can be reduced), thereby reducing the angle range incident on the filter layer 120; and the light shielding frame 130 with the reflective surface 134 only reflects light and does not absorb light, which can reduce the light intensity loss of the light emitted by the light emitting pixel point. The light-emitting pixel point may be located at the center or the periphery of a side of the light path space 132 facing away from the filter layer 120 .

[0053] In one embodiment, a lens can be arranged in the optical path space 132 of the light shielding frame 130 to reduce the angle range of the light incident on the filter layer 120. The arranged lens can gather and collimate the light emitted by the light-emitting pixel points in the optical path space 132, thereby reducing the angle range of the light incident on the filter layer 120, thereby making the degree of change of the color coordinates consistent with the preset as much as possible, so that the light emitting color gamut range of the display panel 100 can cover the predetermined color gamut range as much as possible.

[0054] In one embodiment, a light guide rod may be arranged in the optical path space 132 of the light shielding frame 130, so that the angle range of light incident on the filter layer 120 becomes smaller. Light emitted by the light-emitting pixel point may be transmitted in the light guide rod, and emitted from the light-emitting surface (the surface away from the light-emitting pixel point) of the light guide rod to the filter layer 120, so that the angle range of light incident on the filter layer 120 may be reduced, so that the degree of change of the color coordinates is consistent with the preset as much as possible, so that the light gamut range of the display panel 100 can cover the predetermined color gamut range as much as possible.

[0055] In addition, the display panel 100 may further include a diffusion film 140 disposed on the filter layer 120. By disposing the diffusion film 140 on the filter layer 120, the light emitted from the filter layer 120 can be diffused, and the light emitted by the display panel 100 can be made more uniform.

[0056] It is understandable that the diffusion film 140 can cooperate with the light shielding frame 130 and the multi-layer dielectric film, such as Fig.10 As shown, the diffusion film 140 and the shading frame 130 are respectively arranged on two opposite sides of the filter layer 120. The shading frame 130 can reduce the angle range of the light incident on the multi-layer dielectric film, so that the wavelength range filtered by the filter layer 120 can be as close as possible to the preset wavelength range. The diffusion film 140 can diffuse the light emitted by the filter layer 120 and make the light emitted by the display panel 100 more uniform, thereby improving the adequacy of wavelength selection while ensuring the uniformity of the light emitted by the display panel 100.

[0057] The diffusion film 140 can be attached to the filter layer 120 by means of adhesive 160. The projection of the adhesive 160 perpendicular to the filter layer 120 on the light shielding frame 130 falls on the light guide frame 131. In this way, the adhesive 160 between the filter layer 120 and the diffusion film 140 is located at a portion that cannot be irradiated by the light emitted from the filter layer 120 or at an edge area that is irradiated, so that the presence of the adhesive 160 will not affect the display effect of the display panel 100; and Fig.11 As shown, a certain gap is generated between the filter layer 120 and the diffusion film 140, and the light can be emitted from the adhesive 160 after refraction, which is beneficial to improving the pixel filling rate of the screen.

[0058] Optionally, the diffusion film 140 may be a diffusion film with a surface microstructure. The filter layer 120 may be laminated to the base surface of the diffusion film 140, with good lamination effect and without affecting the microstructure of the diffusion film.

[0059] Furthermore, the surface microstructure diffusion film can be a Gaussian 80° scattering diffusion film. Fig.12 As shown, Fig.12 Schematic diagram of diffusion results when light is incident on the surface microstructure diffusion film from different surfaces. It can be seen that only when light is incident from the microstructure surface 141 can a 50% diffusion angle of 80 degrees be obtained, while when light is incident from the substrate surface, a 50% diffusion angle of 38 degrees can only be obtained. Therefore, the filter layer 120 is connected to the microstructure surface 141 of the diffusion film with Gaussian 80° scattering, and a 50% diffusion angle of a larger angle can be obtained, which is more conducive to the diffusion of light incident on the diffusion film 140, so that the light emitted by the diffusion film 140 is more uniform.

[0060] However, considering that the adhesion between the filter layer 120 and the microstructure surface will affect the microstructure on the surface of the diffusion film 140, the diffusion film 140 can be adhered to the filter layer 120 in a non-whole-surface adhesion manner. Fig.13 As shown, the adhesive 160 can be applied to the filter layer 120 or the diffusion film 140 by dispensing, so as to achieve the adhesion of the filter layer 120 and the diffusion film 140. In addition, the speed and flow rate of dispensing can be adjusted during the dispensing process. Fig.14 As shown, the adhesive 160 can be continuously coated on the filter layer 120 or the diffusion film 140 , or the adhesive 160 can be coated by means of embossing transfer or exposure and development, thereby achieving the bonding of the filter layer 120 and the diffusion film 140 .

[0061] In other embodiments, the diffusion film 140 may be a particle diffusion film.

[0062] Alternatively, if Fig.15 As shown, the light intensity loss of green light caused by the light shielding frame 130 and the filter layer 120 can be compensated by increasing the light emitting area of ​​the first light emitting sub-pixel 111, so that the green light, red light, and blue light irradiated by the filter layer 120 can achieve white balance under certain conditions. Among them, the light emitting area of ​​the first light emitting sub-pixel 111 is larger than the light emitting area of ​​the second light emitting sub-pixel 112, and the light emitting area of ​​the first light emitting sub-pixel 111 is larger than the light emitting area of ​​the third light emitting sub-pixel 113.

[0063] Optionally, the light intensity loss of the green light caused by the light shielding frame 130 and the filter layer 120 can be compensated by increasing the light intensity of the first light-emitting sub-pixel 111. Fig.16As shown, the luminous intensity of the first luminous sub-pixel 111 can be increased by increasing the current driving the first luminous sub-pixel 111. That is, the current driving the first luminous sub-pixel 111 to emit light can be n times the preset current of the first luminous sub-pixel 111, where n is equal to the ratio of the green light intensity required to achieve white balance to the light intensity of the light emitted by the first luminous sub-pixel 111 after passing through the filter layer 120.

[0064] Optionally, the light intensity loss of the green light caused by the light shielding frame 130 and the filter layer 120 can be compensated by increasing the light intensity and light emitting area of ​​the first light emitting sub-pixel 111. Fig.16 , when the current driving the first light-emitting sub-pixel 111 to emit light exceeds the set current threshold, the display area of ​​the first light-emitting sub-pixel 111 can be increased, and then the driving current of the first light-emitting sub-pixel 111 is adjusted according to the ratio of the green light intensity required to achieve white balance to the light intensity of the light emitted by the first light-emitting sub-pixel 111 after passing through the filter 120, until the driving current is less than or equal to the set current threshold. In other words, the light-emitting areas of the second light-emitting sub-pixel 112 and the third light-emitting sub-pixel 113 can be smaller than the light-emitting area of ​​the first light-emitting sub-pixel 111, and the current driving the first light-emitting sub-pixel 111 to emit light is n times the preset current of the first light-emitting sub-pixel 111, where n is equal to the ratio of the green light intensity required to achieve white balance to the light intensity of the light emitted by the first light-emitting sub-pixel 111 after passing through the filter 120. In this way, the light-emitting area and driving current of the first light-emitting sub-pixel 111 can be flexibly adjusted, and its driving current is ensured not to exceed the set current threshold, thereby ensuring the stability of the display panel 100.

[0065] The above is an embodiment of the display panel 100 provided in the present application. The present application also provides a display device 200. Fig.17 is a schematic diagram of the structure of a display device 200 according to an embodiment of the present application, as shown in Fig.17 As shown, the display device 200 includes a display panel 100. The display panel 100 is the display panel 100 provided by any one of the above embodiments, and has corresponding technical features and technical effects, which will not be described in detail herein.

[0066] It can be seen from the above embodiments that the display panel 100 and the display device 200 provided in the present application achieve at least the following beneficial effects:

[0067] The filter layer 120 disposed on the light emitting layer 110 changes the wavelength range of the first color light, thereby changing the color coordinates of the first color light, thereby changing the light gamut of the display device 200 .

[0068] The above are merely embodiments of the present application and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A display panel, characterized in that: include: A light-emitting layer, the light-emitting layer comprising a plurality of light-emitting pixels, the light-emitting pixels comprising at least a first light-emitting sub-pixel emitting a first color light; A filter layer, disposed on the light-emitting layer, for filtering the incident light of the first color; wherein the filter layer adjusts the color coordinates of the first color light by filtering the wavelength range of the incident first color light; A light shielding frame is arranged between the light emitting layer and the light filtering layer; the light shielding frame comprises a plurality of light guide frames, each of which corresponds to one of the light emitting pixels, and the light guide frames form a light path space, and the light emitted by the light emitting pixels passes through the light path space and enters the light filtering layer; The plurality of light-emitting pixel points further include a plurality of second light-emitting sub-pixels emitting a second color light and a plurality of third light-emitting sub-pixels emitting a third color light; the first light-emitting sub-pixels emit green light, the second light-emitting sub-pixels emit red light, and the third light-emitting sub-pixels emit blue light; The light emitting area of ​​the first light emitting sub-pixel is greater than the light emitting area of ​​the second light emitting sub-pixel, and the light emitting area of ​​the first light emitting sub-pixel is greater than the light emitting area of ​​the third light emitting sub-pixel.

2. The display panel according to claim 1, characterized in that: The first light-emitting sub-pixel emits green light, and the filter layer is located in the light output path of the first light-emitting sub-pixel, and is used to prevent light in a preset wavelength range in the green light from passing through, so as to filter out short wavelengths in the green light wavelength range.

3. The display panel according to claim 2, characterized in that: The filter layer is a band-stop filter or a multi-layer dielectric film.

4. The display panel according to claim 1, characterized in that: The inner wall of the light guide frame constituting the optical path space has a light absorbing surface.

5. The display panel according to claim 1, characterized in that: The inner wall of the light guide frame constituting the optical path space has a reflective surface, and the slope of the reflective surface gradually increases in the direction from the light emitting layer to the filter layer.

6. The display panel according to claim 1, characterized in that: The display panel further comprises: The diffusion film is arranged on the filter layer, and has a microstructure on the surface facing the filter layer; the diffusion film and the light shielding frame are respectively located on two opposite sides of the filter layer.

7. The display panel according to claim 6, characterized in that: The diffusion film is adhered to the filter layer by adhesive, and the adhesive is perpendicular to the projection of the filter layer on the light shielding frame and falls on the light guide frame.

8. A display device comprising the display panel according to any one of claims 1 to 7.

Images