CN115802803A - Display module and display device - Google Patents

Abstract

The application provides a display module assembly and display device, the problem of colour cast appears easily in the arc district of having solved display module assembly among the prior art. The display module comprises a display panel, a display module and a control module, wherein the display panel is provided with a straight area and an arc area which is adjacent to the straight area and is provided with an arc surface; the light path adjusting layer is sequentially overlapped in the straight area and the arc area of the display panel; the light-emitting sub-pixel located in the flat area has a first color coordinate after passing through the light path adjusting layer, the light-emitting sub-pixel located in the arc area has a second color coordinate after passing through the light path adjusting layer, and the distance between the first color coordinate and the second color coordinate in the color coordinate graph is smaller than or equal to a first threshold value.

Description

Display module and display device

Technical Field

The application relates to the technical field of display, in particular to a display module and a display device.

Background

With the rapid development of flexible display technology, 3D curved display screens have come into play. Such a display screen usually includes an arc-shaped area, and color cast is easily generated in the arc-shaped area, which affects the display effect.

Disclosure of Invention

In view of this, the embodiment of the present application provides a display module and a display device, so as to solve the problem that color cast is easily generated in an arc-shaped area of the display module in the prior art.

The application provides a display module assembly in a first aspect, which comprises a display panel, a display module assembly and a control module, wherein the display panel is provided with a straight area and an arc area which is adjacent to the straight area and is provided with an arc surface; the light path adjusting layer is sequentially overlapped in the straight area and the arc area of the display panel; the light-emitting sub-pixels located in the straight area have first color coordinates after passing through the light path adjusting layer, the light-emitting sub-pixels located in the arc area have second color coordinates after passing through the light path adjusting layer, and the distance between the first color coordinates and the second color coordinates in the color coordinate graph is smaller than or equal to a first threshold value. Through the design, the color coordinates of the pictures displayed in different areas in the color coordinate graph are the same or similar, so that color cast is avoided.

In one embodiment, the optical path adjusting layer includes a plurality of optical path adjusting structures, each corresponding to at least one light emitting sub-pixel.

In one embodiment, the light path adjusting layer includes a first film layer and a second film layer, the second film layer is located on one side of the first film layer far away from the display panel, the first film layer includes a plurality of openings, an included angle between a side wall of each opening and the light emitting surface is an obtuse angle, and an orthographic projection of each opening in the light emitting direction covers the corresponding light emitting sub-pixel; the second film layer covers the first film layer and fills the opening; the refractive index of the second film layer is larger than that of the first light path, and the light path adjusting structure is an interface of the first film layer and the second film layer.

In one embodiment, the optical path adjusting layer includes a first film layer and a second film layer, wherein the first film layer includes a plurality of optical path adjusting units independently disposed, an orthogonal projection of each optical path adjusting unit in the light emitting direction covers one light emitting sub-pixel, an obtuse angle is formed between the side wall of the optical path adjusting unit and the light emitting surface, and the second film layer covers the first film layer and fills the gap between the optical path adjusting units; the refractive index of the first film layer is larger than that of the second film layer, and the light path adjusting structure is an interface of the first film layer and the second film layer.

In one embodiment, the light emitting sub-pixel comprises a first light emitting sub-pixel; in the straight region, the edge of the orthographic projection of the first light-emitting sub-pixel in the light emergent direction and the edge of the orthographic projection of the corresponding light path adjusting structure in the light emergent direction are separated by a first distance; in the arc-shaped area, the distance between the edge of the orthographic projection of the first light-emitting sub-pixel in the light emergent direction and the edge of the orthographic projection of the corresponding light path adjusting structure in the light emergent direction is a second distance, and the first distance and the second distance are different.

In one embodiment, the light emitting sub-pixel further comprises a second light emitting sub-pixel; in the straight area, the edge of the orthographic projection of the second light-emitting sub-pixel in the light-emitting direction and the edge of the orthographic projection of the corresponding light path adjusting structure in the light-emitting direction are separated by a third distance; in the arc-shaped area, the distance between the edge of the orthographic projection of the second light-emitting sub-pixel in the light emergent direction and the edge of the orthographic projection of the corresponding light path adjusting structure in the light emergent direction is a fourth interval, and the third interval is equal to the fourth interval.

In one embodiment, the light-emitting sub-pixels further include a third light-emitting sub-pixel, an edge of an orthographic projection of the third light-emitting sub-pixel in the light-emitting direction and an edge of an orthographic projection of the corresponding light-path adjusting structure in the light-emitting direction are separated by a fifth distance, and an edge of an orthographic projection of the third light-emitting sub-pixel in the light-emitting direction and an edge of an orthographic projection of the corresponding light-path adjusting structure in the light-emitting direction are separated by a sixth distance; the fifth pitch and the sixth pitch are equal.

In one embodiment, the first light emitting sub-pixel is a red light emitting sub-pixel, and the first pitch is smaller than the second pitch.

In one embodiment, the first light emitting sub-pixel comprises a green light emitting sub-pixel, and the second pitch is smaller than the first pitch.

In one embodiment, in a direction from the straight region toward the arc region, the second pitch gradually decreases when the second pitch is smaller than the first pitch; when the second pitch is greater than the first pitch, the second pitch is gradually increased. Therefore, the display screen can be adapted to the radian of the cover plate in the arc-shaped area, and the display effect is further optimized.

In one embodiment, in the flat region, the interface of the optical path adjusting structure corresponding to the first light-emitting sub-pixel and the display panel form a first acute angle; in the arc-shaped area, the interface of the light path adjusting structure corresponding to the first light-emitting sub-pixel and the display panel form a second acute angle, and the first acute angle is different from the second acute angle.

In one embodiment, the first light-emitting sub-pixel is a red light-emitting sub-pixel, and the first acute angle is greater than the second acute angle.

In one embodiment, the first light emitting sub-pixel comprises a green light emitting sub-pixel, and the first acute angle is less than the second acute angle.

A second aspect of the present application provides a display device, which includes the display module provided in any of the above embodiments.

According to the display module and the display device provided by the embodiment of the application, the display module comprises a display panel, a display module and a control module, wherein the display panel is provided with a straight area and an arc area which is adjacent to the straight area and provided with an arc surface; the light path adjusting layer is sequentially overlapped in the straight area and the arc area of the display panel; the light-emitting sub-pixels located in the straight area have first color coordinates after passing through the light path adjusting layer, the light-emitting sub-pixels located in the arc area have second color coordinates after passing through the light path adjusting layer, and the distance between the first color coordinates and the second color coordinates in the color coordinate graph is smaller than or equal to a first threshold value. The color coordinates of the pictures displayed in different areas in the color coordinate graph are the same or similar, so that color cast is avoided.

Drawings

Fig. 1 is a schematic perspective view of a display module in the related art.

Fig. 2 is a schematic partial cross-sectional view of the display module shown in fig. 1.

Fig. 3 is a schematic partial cross-sectional structure view of a display module according to a first embodiment of the present disclosure.

Fig. 4 is a schematic partial cross-sectional structure view of a display module according to a second embodiment of the present disclosure.

Fig. 5 is a partial top view schematically illustrating a display module according to a third embodiment of the present disclosure.

Fig. 6 is a schematic partial top view structure diagram of a display module according to a fourth embodiment of the present disclosure.

Fig. 7 is a schematic partial top view structure diagram of a display module according to a fifth embodiment of the present application.

Fig. 8 is a schematic partial top view structure diagram of a display module according to a sixth embodiment of the present application.

Fig. 9 is a schematic partial cross-sectional structure view of a display module according to a seventh embodiment of the present application.

Fig. 10 is a schematic partial cross-sectional view of a display module according to an eighth embodiment of the present application.

Detailed Description

As mentioned in the background, the arc-shaped area of the display screen in the related art often has color cast, which affects the display effect. Fig. 1 is a schematic perspective view of a display module in the related art. As shown in fig. 1, the inventor has found that one of the reasons for the color shift problem of the arc-shaped area S is that when the observer is at a predetermined position to observe the display screen, the observer has a different viewing angle relative to the arc-shaped area S and a different viewing angle relative to the flat area L, which causes different ratios of single-color light-emitting sub-pixels in white light in different areas, resulting in color shift. For example, when the observer looks at the flat region L at a certain position, if the emergent light from the arc region S enters the human eye at a small viewing angle, the arc region S may have a small viewing angle β ₁ White light and powder bias phenomenon. This is because the red light-emitting sub-pixels of the arc-shaped region S have a higher percentage of white light than the straight region at a small viewing angle. For another example, when the observer looks at the flat region L at a certain position, if the emergent light from the arc region S enters the human eye at a large viewing angle, the arc region S may have a large viewing angle β ₂ The lower white light is bluish. This is because the ratio of green light-emitting sub-pixels of the arc region S in white light is higher than that of the straight region L at a large viewing angle.

In view of this, the present application provides a display module and a display device. The display module comprises a display panel and a light path adjusting layer stacked in the light emergent direction of the display panel, the display panel is provided with a straight area and an arc area which is adjacent to the straight area and provided with an arc surface, and when a luminous sub-pixel in the display panel displays a picture, the picture can be a pure-color picture, such as a pure white picture; when the flat area is observed at a certain position, the flat area has a first visual angle relative to the observation position, and the light-emitting sub-pixel of the flat area has a first color coordinate after passing through the light path adjusting layer; when the arc area is observed at the position, the arc area has a second visual angle relative to the observation position, the light-emitting sub-pixel of the arc area has a second color coordinate through the light path adjusting layer, and the distance between the first color coordinate and the second color coordinate in the color coordinate graph is smaller than or equal to a first threshold value. It should be noted that the color coordinate diagram in the present embodiment is a CIE chromaticity diagram, which may be a CIE1931 chromaticity diagram or a CIE1976 chromaticity diagram, and the CIE1976 chromaticity diagram is preferably used. The first threshold may be 0.004 or a value smaller than 0.004, for example, 0.0038, 0.0036, or 0.0035 \8230, where the smaller the first threshold is, the smaller the distance between the first color coordinate and the second color coordinate in the color coordinate graph is, the smaller the deviation between the first color coordinate and the second color coordinate in the color coordinate graph is, that is, the smaller the degree of color cast between the first color coordinate and the second color coordinate is, which is advantageous for improving the display effect; through the design, the proportion of the luminous sub-pixels in the white light emitted by different areas at the same observation position tends to be consistent, and color cast is avoided.

The above mentioned viewing angle may refer to a viewing angle value, or may refer to a viewing angle range. In an example, the viewing angles include a front viewing angle, a side viewing angle, a large viewing angle, and a small viewing angle. The front viewing angle and the side viewing angle form the whole viewing angle range, wherein the front viewing angle is that the line of sight is perpendicular to the display panel. The large visual angle can comprise 60 degrees to 85 degrees, and the small visual angle can comprise 0 degree to 30 degrees; the viewing angle is an angle formed by a line of sight and a vertical direction of the display panel.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Fig. 2 is a schematic partial cross-sectional view of the display module shown in fig. 1. From the viewpoint of the film structure, referring to fig. 2, the display module 10 includes a display panel 11 and a light path adjusting layer located in the light emitting direction of the display panel 11. The light path adjusting layer is of a composite film layer structure and comprises a first film layer 12 and a second film layer 13, the first film layer 12 and the second film layer 13 are both located in the light emitting direction of the display panel 11, and the second film layer 13 is located on one side, far away from the display panel 11, of the first film layer 12.

The display panel 11 includes a plurality of light-emitting sub-pixels 110, and a pixel gap is formed between adjacent light-emitting sub-pixels 110. The display panel 11 may be a self-luminous display panel such as an organic light emitting display panel, a quantum dot light emitting display panel, a micro-inorganic Light Emitting Diode (LED) display panel, a nano-LED display panel, and the like. The display panel 11 may also be a non-self-luminous display panel such as an electrophoretic display panel and an electrowetting display panel. The display panel may be used in large electronic devices such as televisions, electronic bulletin boards, and the like, as well as in small and medium electronic devices such as personal computers, laptop computers, car navigation devices, and cameras, and also in tablet computers, smart phones, personal digital assistants, portable multimedia players, game devices, wristwatch-type electronic devices, and the like.

The optical path adjustment layer includes a plurality of optical path adjustment structures 120, and each optical path adjustment structure 120 corresponds to one light emitting sub-pixel. The light path adjusting structure 120 is used to change the light emitting path of the light emitting sub-pixel 110 corresponding to the light path adjusting structure 120, and the light emitting sub-pixel 110 emits light to the light path adjusting structure 120 corresponding to the light path adjusting structure 120. For example, in the present embodiment, as shown in fig. 2, the first film layer 12 is a patterned film layer. The first film layer 12 includes a plurality of openings 121, and the openings 121 penetrate the first film layer 12 in the light exit direction. Each opening 121 corresponds to one light-emitting sub-pixel 110, and the orthographic projection of the opening 121 on the display panel 11 covers the corresponding light-emitting sub-pixel, and the orthographic projection of the first film layer 12 in the light-emitting direction falls within the pixel gap range. An obtuse angle is formed between the sidewall of the opening 121 and the light emitting surface of the light emitting sub-pixel 110, that is, the cross-sectional area of the opening 121 gradually increases in the light emitting direction. The second film layer 13 covers the first film layer 12 and fills the opening 121. The refractive index of the second film layer 13 is greater than the refractive index of the first film layer 12. In this case, the interface of the first film layer 12 and the second film layer 13 forms the optical path adjusting structure 120. For each opening 121, the path of the emitted light of the light-emitting sub-pixel 110 corresponding to the opening 121 is changed by the sidewall of the opening 121, i.e. the light path adjusting structure 120.

As shown in fig. 2, an edge of the forward projection of the light-emitting sub-pixel 110 in the light-emitting direction and an edge of the forward projection of the corresponding light path adjusting structure 120 in the light-emitting direction have a certain distance D. The first outgoing light L1 of the light emitting sub-pixel 110 irradiates the corresponding optical path adjusting structure 120, and then is emitted in the normal viewing angle direction with a critical angle θ. For the arc-shaped area, due to the arc-shaped reason, the view angle of the arc-shaped area and the straight area observed at the same observation position is different, and if the distance D between the arc-shaped area and the straight area is the same, color cast can be caused. When the distance D between the arc areas is reduced relative to the distance D between the flat areas, the second outgoing light L2 of the light-emitting sub-pixel 110 will irradiate onto the corresponding light path adjusting structure 120, and then be emitted in the normal viewing angle direction, and the critical angle is reduced. When the critical angle is decreased, the front-view light output of the light-emitting sub-pixel 110 is increased relative to the non-decreased light output, and the side-view light output is decreased under the condition that the total light output is not changed; due to different light emitting quantities, the ratio of the light emitted by the light emitting sub-pixel in the display picture under different visual angles is changed, and the color coordinate of the real picture in the color coordinate graph can be changed. That is, decreasing the pitch D increases the front viewing angle light output and decreases the side viewing angle light output of the light-emitting sub-pixel 110. Conversely, increasing the distance D reduces the front viewing angle light output of the light-emitting sub-pixel 110 and increases the side viewing angle light output.

Based on the light quantity adjustment principle shown in fig. 2, the embodiment of the application provides a display module. Fig. 3 is a schematic structural diagram of a display module according to a first embodiment of the present application. Fig. 4 is a schematic structural diagram of a display module according to a second embodiment of the present application. It should be noted that the corresponding stereoscopic structure of the display module shown in fig. 3 and 4 is the same as that shown in fig. 1, but since fig. 3 and 4 are as fine as the light-emitting sub-pixels, the radian of the arc-shaped region S in fig. 1 is not reflected on several light-emitting sub-pixels in fig. 3 and 4, and the arc-shaped region S is in a straight structure, and actually, after the number of light-emitting sub-pixels reaches a certain value, the arc-shaped region S is curved as shown in fig. 1. The other figures provided by the embodiment of the application are the same.

As shown in fig. 3 and 4, the display module includes a plurality of first light-emitting sub-pixels 111. The arc region S includes a plurality of first light emitting sub-pixels 111, and the flat region L includes a plurality of first light emitting sub-pixels 111. In the flat region L, an edge of the orthographic projection of the first light-emitting sub-pixel 111 in the light-emitting direction and an edge of the orthographic projection of the corresponding light path adjusting structure 120 in the light-emitting direction are separated by a first distance D ₁ . In the arc region S, a distance between an edge of the orthographic projection of the first light-emitting sub-pixel 111 in the light-emitting direction and an edge of the orthographic projection of the corresponding light path adjusting structure 120 in the light-emitting direction is a second distance D ₂ . First distance D ₁ And a second pitch D ₂ Are not equal.

It should be noted that, in the embodiment, the first distance D is between the flat region L and the first substrate ₁ For the prior art with the light path adjusting structure 120 to make the front view angle light output amount in the flat area reach the optimum distance, the first distance D is different due to different product structures and different thicknesses ₁ The values of (a) are different, and can be specifically set according to actual conditions, and for the scheme of the embodiment, the second distance D is different ₂ At a first distance D ₁ Adjustments are made for the reference.

For example, in order to solve the problem of the small viewing angle of the arc region S, the light output of the red light emitting sub-pixel at the small viewing angle of the arc region S needs to be reduced. From the principle that increasing the pitch D can reduce the amount of light emitted from the emission sub-pixels at a normal viewing angle, it can be seen that reducing the amount of light emitted from the red emission sub-pixels at a low viewing angle can increase the pitch D corresponding to the red emission sub-pixels,namely, the first light-emitting sub-pixel is set as the red light-emitting sub-pixel, and the second distance D is set ₂ Greater than the first distance D ₁ As shown in fig. 3. Or, in order to solve the problem of the small-viewing-angle powder bias existing in the arc-shaped region S, the small-viewing-angle light-emitting amount of the green light-emitting sub-pixel and/or the blue light-emitting sub-pixel under the small viewing angle of the arc-shaped region S may be increased. According to the principle that the front viewing angle light output of the light-emitting sub-pixels can be increased by reducing the distance D, in order to increase the small viewing angle light output of the green light-emitting sub-pixels and/or the blue light-emitting sub-pixels under the small viewing angle of the arc-shaped region S, the distance D corresponding to the green light-emitting sub-pixels and/or the blue light-emitting sub-pixels can be reduced, that is, the first light-emitting sub-pixels are set to be the green light-emitting sub-pixels and/or the blue light-emitting sub-pixels, and the second distance D2 is smaller than the first distance D1, as shown in fig. 4.

For another example, in order to solve the blue-green color shift problem of the arc region S, the light output of the green light-emitting sub-pixel at the large viewing angle of the arc region S needs to be reduced. According to the principle of reducing the distance D, the light-emitting sub-pixel can be reduced in side view angle, and in order to reduce the light-emitting amount of the green light-emitting sub-pixel in a large view angle, the distance D corresponding to the green light-emitting sub-pixel can be reduced, that is, the first light-emitting sub-pixel is set to be the green light-emitting sub-pixel, and the second distance D is set to be the first distance D ₂ Is smaller than the first distance D ₁ As shown in fig. 4. Alternatively, in order to solve the problem of the blue-green large viewing angle in the arc region S, the light output of the red light-emitting sub-pixel and/or the blue light-emitting sub-pixel in the arc region S under the large viewing angle needs to be increased. According to the principle that the side view angle light output of the light-emitting sub-pixels can be increased by increasing the distance D, in order to increase the light output of the red light-emitting sub-pixels and/or the blue light-emitting sub-pixels under a large viewing angle, the distance D corresponding to the red light-emitting sub-pixels and/or the blue light-emitting sub-pixels can be increased, that is, the first light-emitting sub-pixels are set to be the red light-emitting sub-pixels and/or the blue light-emitting sub-pixels, and the second distance D is set to be the second distance D ₂ Greater than the first distance D ₁ As shown in fig. 3.

According to the display module that this embodiment provided, the display module includes display panel and the light path adjustment layer that is located display panel's light-emitting direction. The display panel comprises a plurality of light-emitting sub-pixels, the light path adjusting layer comprises a plurality of light path adjusting structures, each light path adjusting structure corresponds to at least one light-emitting sub-pixel, namely each light path adjusting structure is used for adjusting the emergent light path of the at least one light-emitting sub-pixel, and the emergent light path of the at least one light-emitting sub-pixel can pass through the light path adjusting structure and is adjusted at the light path adjusting structure. The display module comprises an arc-shaped area and a flat area, and the plurality of light-emitting sub-pixels comprise a plurality of first light-emitting sub-pixels. In the straight region, the edge of the orthographic projection of the first light-emitting sub-pixel in the light emergent direction and the edge of the orthographic projection of the corresponding light path adjusting structure in the light emergent direction are away from each other by a first distance. In the arc-shaped area, the distance between the edge of the orthographic projection of the first light-emitting sub-pixel in the light emergent direction and the edge of the orthographic projection of the corresponding light path adjusting structure in the light emergent direction is a second distance, and the first distance and the second distance are different. By reasonably selecting the first light-emitting sub-pixel and setting the size relationship between the first interval and the second interval, the proportion of the first light-emitting sub-pixel in the arc-shaped area in the white light can be the same as that of the first light-emitting sub-pixel in the straight area in the white light at the same observation position, so that the problem of color cast can be solved.

Fig. 5 is a partial top view schematically illustrating a display module according to a third embodiment of the present disclosure. As shown in fig. 5, in the display module 50, the first film layer 12 is shown as a shaded area in fig. 5. The plurality of light emitting sub-pixels 110 include a first light emitting sub-pixel 111, a second light emitting sub-pixel 112, and a third light emitting sub-pixel 113, and the first light emitting sub-pixel 111, the second light emitting sub-pixel 112, and the third light emitting sub-pixel 113 are light emitting sub-pixels of different colors, respectively. In the flat region L, an edge of the orthographic projection of the second light-emitting sub-pixel 112 in the light-emitting direction and an edge of the orthographic projection of the corresponding light path adjusting structure 120 in the light-emitting direction are separated by a third distance D ₃ . In the arc region S, the edge of the orthographic projection of the second light-emitting sub-pixel 112 in the light-emitting direction and the edge of the orthographic projection of the corresponding light path adjusting structure 120 in the light-emitting direction are separated by a fourth distance D ₄ . Third distance D ₃ And a fourth distance D ₄ Equal or unequal. In the flat region L, the orthographic projection edge of the third light-emitting sub-pixel 113 in the light-emitting direction and the corresponding light path adjusting junctionThe edges of the orthographic projection of the structures 120 in the light emergent direction are spaced apart by a fifth distance D ₅ . In the arc region S, the edge of the orthographic projection of the third light-emitting sub-pixel 113 in the light-emitting direction and the edge of the orthographic projection of the corresponding light path adjusting structure 120 in the light-emitting direction are separated by a sixth distance D ₆ . Fifth distance D ₅ And a sixth distance D ₆ Equal or unequal.

Note that, in fig. 4, the first distance D ₁ Is greater than the second distance D ₂ For example only, the first distance D may be set ₁ Less than the second distance D ₂ 。

Fig. 6 is a schematic top view illustrating a display module according to a fourth embodiment of the present disclosure. As shown in fig. 6, in the display module 60, one light path adjusting structure 120 corresponds to a plurality of light-emitting sub-pixels 110, that is, the plurality of light-emitting sub-pixels 110 are located in the same opening 121 of the first film 12. For example, one optical path adjusting structure 120 corresponds to the first light emitting sub-pixel 111, the second light emitting sub-pixel 112, and the third light emitting sub-pixel 113, and the three light emitting sub-pixels constitute one pixel unit. In the flat region L, a first distance D ₁ A third distance D ₃ A fifth distance D ₅ Are all equal. In the arc region S, the second distance D ₂ Less than the fourth distance D ₄ Fourth distance D ₄ Equal to the sixth spacing D ₆ . First distance D in flat zone L ₁ A third distance D ₃ A fifth distance D ₅ And a fourth distance D within the arc region S ₄ A sixth distance D ₆ Are all equal.

It should be noted that the pitch mentioned in the present embodiment includes the first pitch D ₁ A second pitch D ₂ A third distance D ₃ A fourth distance D ₄ A fifth distance D ₅ And a sixth distance D ₆ Are all minimum pitches. E.g. at a second distance D ₂ For example, which indicates a distance between a projected edge of the first light-emitting sub-pixel 111 in the light-emitting direction and a projected edge of the light path adjusting structure 120 in the light-emitting direction within the arc-shaped region S, it can be seen from fig. 6 that different positions of the projected edge of the first light-emitting sub-pixel 111 and the projected edge of the light path adjusting structure 120The spacing between the edges is unequal. For example, a distance between a left edge of the projection of the first light emitting subpixel 111 and an edge of the projection of the optical path adjusting structure 120 is much larger than a distance between a right edge of the projection of the first light emitting subpixel 111 and an edge of the projection of the optical path adjusting structure 120. In this case, a distance between the projected right edge of the first light emitting sub-pixel 111 and the projected edge of the optical path adjusting structure 120 is the second distance D ₂ 。

Fig. 7 is a schematic top view illustrating a display module according to a fifth embodiment of the present disclosure. As shown in fig. 7, in the display module 70, the number of the light emitting sub-pixels 110 corresponding to different light path adjusting structures is different, some light path adjusting structures correspond to one light emitting sub-pixel 110, and some light path adjusting structures correspond to a plurality of light emitting sub-pixels 110.

For example, the optical path adjusting structure of the arc-shaped area S includes a first optical path adjusting structure 122 and a second optical path adjusting structure 123. The first optical path adjusting structure 122 corresponds to one light emitting sub-pixel 110, such as the first light emitting sub-pixel 111, that is, the first light emitting sub-pixel 111 is located in one opening 121 of the first film layer 12. The second optical path adjusting structure 123 corresponds to a plurality of light emitting sub-pixels, such as the second light emitting sub-pixel 112 and the third light emitting sub-pixel 113, that is, the second light emitting sub-pixel 112 and the third light emitting sub-pixel 113 are located in the same opening 121 of the first film 12. The light path adjusting structure 120 of the flat region L includes a third light path adjusting structure 124, and the third light path adjusting structure 124 corresponds to three light-emitting sub-pixels, for example, a first light-emitting sub-pixel 111, a second light-emitting sub-pixel 112, and a third light-emitting sub-pixel 113, which are all located in the same opening 121 of the first film layer 12.

Fig. 8 is a schematic partial cross-sectional structure view of a display module according to a sixth embodiment of the present disclosure. In the display module 80 shown in FIG. 7, the second distance D is in a direction from the flat region L to the arc region S ₂ And the gradient trend is shown. For example, as shown in FIG. 8, a first distance D ₁ Is greater than the second distance D ₂ Second distance D ₂ Gradually decreasing in the direction from the straight region L to the arc region S. Also for example, the first distance D ₁ Is less than the second distance D ₂ Second, secondDistance D ₂ Gradually decreases in a direction from the straight region L toward the arc region S.

The farther away from the flat area L, the greater the radian of the cover plate, and the more serious the color cast problem. Thus, by setting the second pitch D ₂ The display screen is in a gradual change trend, and can be adapted to the radian of the cover plate, so that the display effect is further improved.

Fig. 9 is a schematic partial cross-sectional structure view of a display module according to a seventh embodiment of the present application. As shown in fig. 9, the difference between the display module 90 and the display module provided in any of the above embodiments is that, in the display module 90, the optical path adjusting layer includes a first film layer and a second film layer, the first film layer includes a plurality of optical path adjusting units 125 independent from each other, that is, each optical path adjusting unit 125 is disposed at intervals, and the orthographic projection of each optical path adjusting unit 125 in the light emitting direction covers one light emitting sub-pixel 110. The second film layer covers the first film layer and fills the gap between the light path adjusting units, and the refractive index of the first film layer is greater than that of the second film layer 13. The interface between the first film layer 12 and the second film layer 13 forms the optical path adjusting structure 120, and an obtuse angle is formed between the sidewall of the optical path adjusting unit 125 and the light emitting surface of the light emitting sub-pixel 110, that is, in the light emitting direction, the cross-sectional area of the optical path adjusting unit 125 is gradually reduced, and the optical path adjusting structure is the interface between the first film layer and the second film layer.

The display module 90 provided by the embodiment also has the same light output adjustment rule as the display module shown in fig. 2, that is, the distance D is reduced, so that the front viewing angle light output of the light-emitting sub-pixel 110 can be increased, and the side viewing angle light output can be reduced. Conversely, increasing the distance D reduces the front viewing angle light output of the light-emitting sub-pixel 110 and increases the side viewing angle light output. Therefore, the size relationship of the distances D corresponding to the light-emitting sub-pixels with the same color in the arc-shaped area S and the straight area L can be reasonably set according to actual needs. For details, reference is made to the above-mentioned corresponding embodiments, which are not described herein again.

According to the display module provided by any of the above embodiments, the light output amount at the first viewing angle and the light output amount at the second viewing angle are different by setting the first distance D ₁ And a second pitch D ₂ And not to equal. The embodiment of the application also provides another methodThe scheme that the light output quantity at the first visual angle is different from the light output quantity at the second visual angle is realized, namely the included angles between the side surface of the light path adjusting structure and the display panel are different. The following describes the embodiment with reference to the drawings.

Fig. 10 is a schematic partial cross-sectional view of a display module according to an eighth embodiment of the present application. As shown in fig. 10, in the display module 100, the optical path adjusting structure 120 includes an interface N obliquely disposed with the display panel 11. In the flat region L, the interface of the optical path adjusting structure 120 corresponding to the first light-emitting sub-pixel 111 and the display panel 11 form a first acute angle θ ₄ . In the arc region S, the interface of the optical path adjusting structure 120 corresponding to the first light-emitting sub-pixel 111 and the display panel 11 form a second acute angle θ ₅ First acute angle theta ₄ And a second acute angle theta ₅ And are not equal.

Similarly, in the embodiment, the first acute angle θ is in the flat region L ₄ In order to provide the optical path adjusting structure 120 in the prior art to optimize the light output at the front viewing angle in the flat and straight area, the first acute angle θ is different due to different product structures and thicknesses ₄ The values of (a) are different, and can be specifically set according to actual conditions, and for the scheme of the embodiment, the second acute angle theta is different ₅ At a first acute angle theta ₄ Adjustments are made for the reference.

For example, the first acute angle θ ₄ Less than the second acute angle theta ₅ . In this case, the first pitch D and the influence on the light output amount of the light-emitting sub-pixel 110 in the optical path adjustment layer 12 ₁ Is greater than the second distance D ₂ The same effect is exerted on the light output of the light-emitting sub-pixel 110. Also for example, the first acute angle θ ₄ Greater than the second acute angle theta ₅ . In this case, the first pitch D and the influence on the light output amount of the light-emitting sub-pixel 110 in the optical path adjustment layer 12 ₁ Is less than the second distance D ₂ The same effect is exerted on the light output of the light-emitting sub-pixel 110. For specific influence results, refer to the embodiment shown in fig. 2 and fig. 3, which are not repeated herein.

In one embodiment, the second acute angle θ is oriented from the straight region L to the curved region S ₅ And the trend of gradual change is shown. For example, the first acute angle θ ₄ Greater than the second acute angle theta ₅ A second acute angle theta in a direction from the straight region L to the arc region S ₅ Gradually decreases. Also for example, the first acute angle θ ₄ Less than the second acute angle theta ₅ A second acute angle theta in a direction from the straight region L to the arc region S ₅ And gradually increases.

In one embodiment, the plurality of light emitting sub-pixels further comprises a plurality of second light emitting sub-pixels. In the flat region L, a side surface of the optical path adjusting structure 120 corresponding to the second light emitting sub-pixel and the display panel 11 form a third acute angle. In the arc region, a side surface of the optical path adjusting structure 120 corresponding to the second light emitting sub-pixel and the display panel 11 form a fourth acute angle, and the third acute angle is equal to the fourth acute angle. Further, the plurality of light emitting sub-pixels may further include a plurality of third light emitting sub-pixels. In the flat region, the side surface of the optical path adjusting structure 120 corresponding to the third light-emitting sub-pixel and the display panel 11 form a fifth acute angle. In the arc-shaped area, a sixth acute angle is formed between the side surface of the optical path adjusting structure 120 corresponding to the third light-emitting sub-pixel and the display panel 11, and the fifth acute angle is equal to the sixth acute angle.

In one embodiment, the plurality of optical path adjusting structures include a first optical path adjusting structure and a second optical path adjusting structure, and the number of the light emitting sub-pixels corresponding to the first optical path adjusting structure and the second optical path adjusting structure is different.

In one embodiment, the first light emitting sub-pixel and the second light emitting sub-pixel correspond to the same optical path adjusting structure.

In one embodiment, the first light emitting sub-pixel comprises a green light emitting sub-pixel, the first acute angle θ ₄ Less than the second acute angle theta ₅ 。

Alternatively, in one embodiment, the first light emitting sub-pixel includes a red light emitting sub-pixel and/or a blue light emitting sub-pixel, and the first acute angle θ ₄ Greater than the second acute angle theta ₅ (ii) a Thereby solving the problem of the blue-green large visual angle of the arc area S.

In another embodiment, the first light emitting sub-pixel comprises a red light emitting sub-pixel, and the first acute angle θ is ₄ Greater than the second acute angle theta ₅ ；

Or, in one embodimentThe first light-emitting sub-pixel comprises a green light-emitting sub-pixel and/or a blue light-emitting sub-pixel, and the first acute angle theta ₄ Less than the second acute angle theta ₅ (ii) a Thereby solving the problem of small visual angle powder deflection existing in the arc-shaped area S.

The foregoing description has been presented for purposes of illustration and description. Furthermore, the description is not intended to limit embodiments of the application to the form disclosed herein. While a number of example aspects and embodiments have been discussed above, those of skill in the art will recognize certain variations, modifications, alterations, additions and sub-combinations thereof.

Claims (10)

1. The utility model provides a display module assembly which characterized in that, display module assembly includes:

a display panel having a straight region and an arc region adjoining the straight region and having an arc surface;

the light path adjusting layer is sequentially stacked in the straight area and the arc area of the display panel;

the light-emitting sub-pixels in the straight area have first color coordinates after passing through the light path adjusting layer, the light-emitting sub-pixels in the arc area have second color coordinates after passing through the light path adjusting layer, and the distance between the first color coordinates and the second color coordinates in a color coordinate graph is smaller than or equal to a first threshold value.

2. The display module of claim 1, wherein the optical path adjustment layer comprises a plurality of optical path adjustment structures, and each optical path adjustment structure corresponds to at least one of the light-emitting sub-pixels.

3. The display module of claim 2, wherein the optical path adjustment layer comprises a first film layer and a second film layer, the second film layer is disposed on a side of the first film layer away from the display panel, the first film layer comprises a plurality of openings, an included angle between a sidewall of each opening and the light emitting surface is an obtuse angle, and an orthographic projection of each opening in the light emitting direction covers the corresponding light emitting sub-pixel; the second film layer covers the first film layer and fills the opening; the refractive index of the second film layer is larger than that of the first light path, and the light path adjusting structure is an interface of the first film layer and the second film layer.

4. The display module according to claim 2, wherein the optical path adjusting layer comprises a first film layer and a second film layer, wherein the first film layer comprises a plurality of optical path adjusting units independently arranged, an orthogonal projection of each optical path adjusting unit in the light emitting direction covers one light emitting sub-pixel, an obtuse angle is formed between a side wall of the optical path adjusting unit and the light emitting surface, and the second film layer covers the first film layer and fills a gap between the optical path adjusting units; and the refractive index of the first film layer is greater than that of the second film layer, and the light path adjusting structure is an interface of the first film layer and the second film layer.

5. The display module of claim 3 or 4, wherein the light emitting sub-pixel comprises a first light emitting sub-pixel; in the straight region, the edge of the orthographic projection of the first light-emitting sub-pixel in the light emergent direction and the edge of the orthographic projection of the light path adjusting structure corresponding to the edge of the orthographic projection of the first light-emitting sub-pixel in the light emergent direction are separated by a first distance; in the arc-shaped area, a second distance is formed between the edge of the orthographic projection of the first light-emitting sub-pixel in the light emergent direction and the edge of the orthographic projection of the corresponding light path adjusting structure in the light emergent direction, and the first distance is different from the second distance.

6. The display module of claim 5, wherein the light emitting sub-pixel further comprises a second light emitting sub-pixel; in the straight region, the edge of the orthographic projection of the second light-emitting sub-pixel in the light emergent direction and the edge of the orthographic projection of the light path adjusting structure corresponding to the second light-emitting sub-pixel in the light emergent direction are separated by a third distance; in the arc-shaped area, the distance between the edge of the orthographic projection of the second light-emitting sub-pixel in the light-emitting direction and the edge of the orthographic projection of the light path adjusting structure corresponding to the edge of the orthographic projection of the second light-emitting sub-pixel in the light-emitting direction is a fourth distance, and the third distance is equal to the fourth distance;

preferably, the light-emitting sub-pixel further includes a third light-emitting sub-pixel, an edge of an orthographic projection of the third light-emitting sub-pixel in the light-emitting direction and an edge of an orthographic projection of the light-path adjusting structure corresponding to the third light-emitting sub-pixel in the light-emitting direction are separated by a fifth distance, and an edge of an orthographic projection of the third light-emitting sub-pixel in the light-emitting direction and an edge of an orthographic projection of the light-path adjusting structure corresponding to the third light-emitting sub-pixel in the light-emitting direction are separated by a sixth distance; the fifth pitch and the sixth pitch are equal.

7. The display module of claim 5, wherein the first light emitting sub-pixel is a red light emitting sub-pixel, and the first pitch is smaller than the second pitch; and/or

The first light emitting sub-pixels comprise green light emitting sub-pixels, and the second pitch is smaller than the first pitch.

8. The display module according to claim 5, wherein the second pitch gradually decreases when the second pitch is smaller than the first pitch in a direction from the flat region to the arc region; when the second pitch is larger than the first pitch, the second pitch is gradually increased.

9. The display module according to claim 3, wherein in the flat region, an interface of the optical path adjusting structure corresponding to the first light emitting sub-pixel and the display panel forms a first acute angle; in the arc-shaped area, the interface of the light path adjusting structure corresponding to the first light-emitting sub-pixel and the display panel form a second acute angle, and the first acute angle is different from the second acute angle.

Preferably, the first light-emitting sub-pixel is a red light-emitting sub-pixel, and the first acute angle is greater than the second acute angle; and/or

The first light emitting sub-pixel comprises a green light emitting sub-pixel, and the first acute angle is smaller than the second acute angle.

10. A display device comprising the display module according to any one of claims 1 to 9.

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