CN111653201B - Display panel and display device - Google Patents

Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention, and as shown in fig. 1, the display panel includes a

first display area

1 and a

second display area

2 surrounding the

first display area

1, where the

first display area

1 is a high-transmittance area, and a front camera is disposed below a screen of the

first display area

1, so that not only can the display panel have a full-screen display, but also an electronic device having the display panel has a front camera function. Fig. 2 is a cross-sectional view of the display panel shown in fig. 1 along a-a plane, and fig. 3-8, 10 and 12 are top views of the light-

shielding layer

4 and the

pixel layer

5 in the

first display region

1 of the display panel shown in fig. 2; as shown in fig. 2, the display panel includes a

substrate layer

3 and a

pixel layer

5 disposed on one side of the

substrate layer

3, wherein the

first display area

1 further includes a light-

shielding layer

4 disposed between the

substrate layer

3 and the

pixel layer

5, wherein a

light hole

41 penetrating through the light-

shielding layer

4 is disposed on the light-

shielding layer

4, and a region of the light-

shielding layer

4 where the

light hole

41 is not disposed is a light-

shielding area

42; the

pixel layer

5 located in the

first display region

1 includes a plurality of

first pixels

51; the

first display region

1 includes a plurality of pixel light-transmitting groups, each pixel light-transmitting group including at least one

first pixel

51 and a plurality of light-transmitting

holes

41; the two adjacent pixel light-transmitting groups are respectively a first pixel light-transmitting

group

211 and a second pixel light-transmitting

group

212, and the projection of one light-transmitting

hole

41 in the first pixel light-transmitting

group

211 on the

substrate layer

3 is superposed with the projection of one light-transmitting

hole

41 in the second pixel light-transmitting

group

212 on the

substrate layer

3; or the projection of the three adjacent

light transmission holes

41 in the first pixel

light transmission group

211 on the

substrate layer

3 coincides with the projection of the three adjacent

light transmission holes

41 in the second pixel

light transmission group

212 on the

substrate layer

3.

Because the display panel includes

first display region

1 district

second display region

2, wherein the below of

first display region

1 sets up leading camera, and

first display region

1 includes

pixel layer

5 and

light shield layer

4, has seted up a plurality of

light trap

41 on

light shield layer

4 wherein, through making a plurality of pixels in

first display region

1 and a plurality of

light trap

41 combination into a plurality of

light trap

41 groups for a pixel printing opacity group includes: the

first pixels

51 and the

light holes

41 are arranged, and one or three

light holes

41 are shared by two adjacent pixel light transmission groups, when light passes through the

first display area

1, the

light holes

41 shared by one pixel light transmission group can avoid the phenomenon of constructive or destructive interference of light, so that phase superposition is further avoided, the influence of diffraction and interference effect of light on light uniformity is reduced, and the image quality of the front camera is improved.

For convenience of understanding, the light-

shielding layer

4 and the

pixel layer

5 in the

first display region

1 will be described in detail below with reference to the drawings.

In an embodiment of the present invention, as shown in fig. 3, one pixel light-transmitting group includes a

first pixel

51 and six light-transmitting

holes

41 surrounding the

first pixel

51, a projection of one light-transmitting

hole

41 in the first pixel light-transmitting

group

211 on the

substrate layer

3 coincides with a projection of one light-transmitting

hole

41 in the second pixel light-transmitting

group

212 on the

substrate layer

3, that is, the first pixel light-transmitting

group

211 and the second pixel light-transmitting

group

212 in two adjacent pixel light-transmitting groups share one light-transmitting

hole

41; and the centers of each light-transmitting

hole

41 around the periphery of the

first pixel

51 are on the same first circle. Because the centers of the

light holes

41 are on the same circle, in one pixel light transmission group, a plurality of

light holes

41 surround to form a circle, when light passes through one pixel light transmission group in the

first display area

1, the light is further prevented from generating interference and constructive or destructive interference, the influence of diffraction and interference effects on light uniformity is further reduced, and the image quality of the camera is improved.

Optionally, the center of the first circle is the center of the

first pixel

51, and since the center of the

first pixel

51 coincides with the center of the first circle, the display uniformity in one pixel light-transmitting group is increased, and the display quality of the

first display region

1 is improved.

Optionally, as shown in fig. 4, a projection of one

light transmission hole

41 in the first pixel

light transmission group

211 on the

substrate layer

3 coincides with a projection of one

light transmission hole

41 in the second pixel

light transmission group

212 on the

substrate layer

3, where the

light transmission hole

41 whose projection coincides on the

substrate layer

3 is a coinciding

light transmission hole

41 a; in the first pixel light-transmitting

group

211, two light-transmitting

holes

41 which are adjacent to the overlapping light-transmitting

hole

41 in the clockwise direction and located at two sides of the overlapping light-transmitting

hole

41, with the overlapping light-transmitting

hole

41 as a starting point, are a first light-transmitting

hole

41b and a second light-transmitting

hole

41c, respectively; in the second pixel light-transmitting

group

212, two light-transmitting

holes

41 which are adjacent to the overlapped light-transmitting

hole

41 in the clockwise direction and located on two sides of the overlapped light-transmitting

hole

41 with the overlapped light-transmitting

hole

41a as a starting point are respectively a third light-transmitting

hole

41d and a fourth light-transmitting

hole

41 e; the center of the

second light hole

41c, the center of the

fourth light hole

41e and the center of the

coincident light hole

41 are on the same straight line, and the center of the

first light hole

41b, the center of the

third light hole

41d and the center of the

coincident light hole

41 are on the same straight line. When light passes through one pixel light-transmitting group in the

first display area

1, the light is further prevented from being subjected to constructive or destructive interference, the influence of diffraction and interference effects on light uniformity is further reduced, and the image quality is improved.

Alternatively, as shown in fig. 4, the distance between the center of the second light-transmitting

hole

41c and the center of the overlapped light-transmitting

hole

41a is equal to the distance between the center of the fourth light-transmitting

hole

41e and the center of the overlapped light-transmitting

hole

41 a; the distance between the center of the

first light hole

41b and the center of the overlapped

light hole

41e is equal to the distance between the center of the

third light hole

41e and the center of the overlapped

light hole

41b, so that the three

light holes

41 on the same straight line are distributed more uniformly.

Optionally, as shown in fig. 5, a triangle is formed by the center of the first

light transmission hole

41b, the center of the overlapped

light transmission hole

41a, and the center of the fourth

light transmission hole

41e, and the triangle is shaped as a regular triangle, so that the distribution of the

light transmission holes

41 is more uniform, further avoiding the occurrence of constructive or destructive interference of light, further reducing the influence of diffraction and interference effects on light uniformity, and improving image quality.

In another embodiment of the present invention, as shown in fig. 6, in two adjacent pixel light-transmitting groups, a projection of one light-transmitting

hole

41 in the first pixel light-transmitting

group

211 on the

substrate layer

3 coincides with a projection of one light-transmitting

hole

41 in the second pixel light-transmitting

group

212 on the

substrate layer

3, that is, the first pixel light-transmitting

group

211 and the second pixel light-transmitting

group

212 in the two adjacent pixel light-transmitting groups share one light-transmitting

hole

41; a pixel transmission group comprises a first

sub-pixel transmission group

22; and a plurality of

light transmission holes

41 surrounding the periphery of the first sub-pixel

light transmission group

22; wherein, the first

sub-pixel transmission group

22 includes: a first sub light-transmitting

aperture

44; and a plurality of

first pixels

51 surrounding the

first sub-transmissive hole

44. The

light holes

41 and the pixels in the whole pixel light-transmitting group are distributed more uniformly, so that the display quality of the

first display area

1 is improved; when light passes through one pixel light-transmitting group in the

first display area

1, the light-transmitting

hole

41 further prevents the light from interfering constructively or destructively, further reduces the influence of diffraction and interference effects on light uniformity, and improves the image quality of the camera.

Optionally, the centers of the

light holes

41 around the first sub-pixel light-transmitting

group

22 are on the same second circle, so that in one pixel light-transmitting group, the light transmission is more uniform while the display is uniform.

Optionally, the center of the second circle coincides with the center of the first sub

light transmission hole

44.

It should be understood that when the centers of the six light-transmitting

holes

41 in one pixel light-transmitting group are on the same first circle, the number of the

first pixels

51 in the light-transmitting group located in the first circle may be one, as shown in fig. 3-6, or may be multiple, for example, two

first pixels

51, that is, one pixel light-transmitting group includes two

first pixels

51, and six light-transmitting

holes

41 around the two

first pixels

51, wherein the centers of the six light-transmitting

holes

41 are on the same first circle. Therefore, when one pixel includes six light-transmitting

holes

41 and the centers are on a first circle, the number of first pixels located in the first circle is not limited in the embodiment of the present invention.

It should also be understood that when a pixel group includes at least one

first pixel

51 and a plurality of

light holes

41 surrounding the

first pixel

51, the number of the plurality of

light holes

41 centered on the same first circle may be six, as shown in fig. 3-6, or may be multiple, for example, five, eight, etc., and therefore, the number of the

light holes

41 centered on the same first circle is not limited in the embodiment of the present invention.

In an embodiment of the present invention, as shown in fig. 7, in two adjacent pixel light-transmitting groups, a projection of one light-transmitting

hole

41 in the first pixel light-transmitting

group

211 on the

substrate layer

3 coincides with a projection of one light-transmitting

hole

41 in the second pixel light-transmitting

group

212 on the

substrate layer

3, that is, the first pixel light-transmitting

group

211 and the second pixel light-transmitting

group

212 in the two adjacent pixel light-transmitting groups share one light-transmitting

hole

41; a pixel transmission group comprising: a second sub-pixel light-transmitting

group

23; a plurality of

light transmission holes

41 surrounding the periphery of the second sub-pixel

light transmission group

23; and a

first pixel

51 disposed around the plurality of light-transmitting

holes

41; wherein, the second sub-pixel light-transmitting

group

23 includes: a second sub light-transmitting

hole

43; and at least one

second pixel

52, the

second pixel

52 being disposed on the

substrate layer

3 corresponding to the

second sub-transmission hole

43. In the display panel in the embodiment of the invention, in one pixel light-transmitting group, the second sub light-transmitting

hole

43, the plurality of light-transmitting

holes

41 and the plurality of

first pixels

51 are sequentially arranged from the center of the pixel light-transmitting group to the outside, so that the total light-transmitting area in the pixel light-transmitting group is increased (the total light-transmitting area is not shielded by any light-shielding layer 4), and the image quality of the image is increased; also, the

second pixel

52 is provided in the full light-transmitting region, increasing the display quality in the full light-transmitting region.

Alternatively, as shown in fig. 8, the second sub-pixel light-transmitting

group

23 includes: two

second pixels

52, a line connecting centers of the two

second pixels

52 passes through a center of the second sub light-transmitting

hole

43, so that display in the full light-transmitting area is more uniform.

It should be understood that the number of the

second pixels

52 may be one, as shown in fig. 7, two, as shown in fig. 8, three, or four, and the like, and the embodiment of the present invention does not limit the number of the

second pixels

52 in one second sub-pixel light-transmitting

group

23.

Optionally, fig. 9 is a cross-sectional view of the display panel along a-a cross-section, and fig. 10 is a top view of the light-shielding layer and the pixel layer in the first display region of the display panel shown in fig. 9. As shown in fig. 9, the display panel further includes: a

drive circuit layer

6, the

drive circuit layer

6 being provided between the

light shielding layer

4 and the

pixel layer

5, the

drive circuit layer

6 including: a plurality of first

pixel driving circuits

61 for driving the

first pixels

51 to emit light, respectively; a plurality of first signal lines for supplying signals to the first

pixel driving circuit

61; at least one second

pixel driving circuit

62 for driving the

second pixels

52 to emit light, respectively; and at least one second signal line for supplying a signal to the second

pixel driving circuit

62; as shown in fig. 9, projections of the plurality of first

pixel driving circuits

61, the plurality of second

pixel driving circuits

62, and the plurality of first signal lines on the

substrate layer

3 are all located in a projection of the

light shielding layer

4 on the

substrate layer

3, that is, the plurality of first

pixel driving circuits

61, the plurality of second

pixel driving circuits

62, and the plurality of first signal lines on the

substrate layer

3 are all located in the

light shielding region

42; at least one of the second signal lines is a transparent signal line, as shown in fig. 10. The first signal lines include a first scan line and a first data line, wherein the first scan line provides a scan signal scan1 for each row of the

first pixels

51, and the first data line provides a data signal Vdata1 for each column of the

first pixels

51. The second signal lines include a second scan line for providing a scan signal scan2 to each row of the

second pixels

52 and a second data line for providing a data signal Vdata2 to each column of the

second pixels

52. The second signal lines are transparent signal lines, so that the light transmittance of the full light-transmitting area is increased, the first

pixel driving circuit

61, the second

pixel driving circuit

62 and the first signal lines are all located in the light-

shielding area

42, the number of routing lines in the full light-transmitting area in the

first display area

1 is reduced, when light passes through the

first display area

1, the light is further reduced from being greatly diffracted due to metal, and the image quality of shooting is improved.

Alternatively, since the

second pixel

52 is disposed in the fully light-transmitting region, in order to reduce diffraction of light passing through the fully light-transmitting region, the

second pixel

52 shares one first

pixel driving circuit

61 with any one

first pixel

51 of the plurality of

first pixels

51 located in the

first display region

1; the

second pixel

52 is connected to the

first pixel

51 sharing one first

pixel driving circuit

61 with the

second pixel

52 via a first metal line. That is, the

second pixel

52 shares one first

pixel driving circuit

61 with any one

first pixel

51 of the plurality of

first pixels

51 through the first metal wire, when the display panel is manufactured, the second pixel driving circuit is not required to be prepared under the

second pixel

52, that is, the

second pixel

52 is designed in the full light transmission region but the second pixel driving circuit is not designed, so that the number of metal wires in the full light transmission region is reduced, when light passes through the

first display region

1, the metal wires in the full light transmission region in the

first display region

1 are obviously reduced, large diffraction of the light caused by metal is further reduced, and the image quality of the image pickup is improved.

In the display panel, in each of the above-mentioned fig. 3-fig. 8 and fig. 10, in two adjacent pixel light-transmitting groups, a projection of one light-transmitting

hole

41 in the first pixel light-transmitting

group

211 on the

substrate layer

3 coincides with a projection of one light-transmitting

hole

41 in the second pixel light-transmitting

group

212 on the

substrate layer

3, that is, the first pixel light-transmitting

group

211 and the second pixel light-transmitting

group

212 in the two adjacent pixel light-transmitting groups share one light-transmitting

hole

41. In another embodiment of the present invention, as shown in fig. 12, in two adjacent pixel light-transmitting groups, the projection of three adjacent light-transmitting

holes

41 in the first pixel light-transmitting

group

211 on the

substrate layer

3 coincides with the projection of three adjacent light-transmitting

holes

41 in the second pixel light-transmitting

group

212 on the

substrate layer

3, that is, the first pixel light-transmitting

group

211 and the second pixel light-transmitting

group

212 in the two adjacent pixel light-transmitting groups share three light-transmitting

holes

41; when light passes through the

first display area

1, the light holes 41 shared in the three pixel light transmission groups enable the light transmission regions and the

shading regions

42 to be distributed more uniformly, the area of the full light transmission region in one pixel light transmission group is increased, the phenomenon that light interference is constructive or destructive can be further avoided, phase superposition is further avoided, the influence of diffraction and interference effect of the light on light uniformity is reduced, and the image quality of the front camera is improved.

It should be understood that the shape of the light-transmitting hole 41 (including the first light-transmitting

sub-hole

44 and the second light-transmitting sub-hole 43) may be a circle as shown in fig. 3, a polygon such as a triangle and a quadrangle, or an irregular shape formed by a curve (e.g., an arc) and a straight line, and therefore, the specific shape of the light-transmitting

hole

41 is not limited in the embodiments of the present invention.

It should be further understood that, in the

first display region

1 of one display panel, the specific distribution structure of two pixel light-transmitting groups in at least one group of two adjacent pixel light-transmitting groups may be as described in any one of the structures shown in fig. 3-8, for example, the

first display region

1 includes four pixel light-transmitting groups, and two pixel light-transmitting groups constitute a group of adjacent pixel light-transmitting groups, the structure of two pixel light-transmitting groups in the first group of adjacent pixel light-transmitting groups may be as shown in fig. 3, and the structure of two pixel light-transmitting groups in the other group of adjacent pixel light-transmitting groups may be as shown in fig. 6. Also for example, of the plurality of pixel light-transmitting groups included in the

first display region

1, any two adjacent pixel light-transmitting groups may have the structure shown in fig. 3.

As a second aspect of the present invention, an embodiment of the present invention provides a display device, including the

display panel

100 described above, as shown in fig. 13. The specific structure and principle of the

display panel

100 are the same as those of the above embodiments, and are not described herein again. The display device may be any electronic device with a display function, such as a touch display screen, a mobile phone, a tablet computer, a notebook computer, an electronic paper book, or a television. In the display device provided in the embodiment of the present invention, the display panel includes a

first display area

1 and a

second display area

2, wherein a front camera is disposed below the

first display area

1, the

first display area

1 includes a

pixel layer

5 and a

light shielding layer

4, wherein a plurality of light transmission holes 41 are disposed on the

light shielding layer

4, and a plurality of pixels in the

first display area

1 and the plurality of light transmission holes 41 are combined into a plurality of pixel

light transmission hole

41 groups, so that one pixel light transmission group includes: the

first pixels

51 and the light holes 41 are arranged, and one or three

light holes

41 are shared by two adjacent pixel light transmission groups, when light passes through the

first display area

1, the light holes 41 shared by one pixel light transmission group can avoid the phenomenon of constructive or destructive interference of light, so that phase superposition is further avoided, the influence of diffraction and interference effect of light on light uniformity is reduced, and the image quality of the front camera is improved.

1. A display panel including a first display region and a second display region disposed around the first display region, the display panel comprising: a substrate layer;

the first display area comprises a light shielding layer arranged on one side of the substrate layer, a plurality of light holes are formed in the light shielding layer, and the light holes penetrate through the light shielding layer;

the display panel further comprises a pixel layer arranged on one side, far away from the substrate layer, of the light shielding layer, wherein the pixel layer located in the first display area comprises a plurality of first pixels;

wherein the first display region includes a plurality of pixel transmission groups, the pixel transmission groups including: at least one first pixel and a plurality of light holes;

wherein, two adjacent pixel light-transmitting groups are respectively a first pixel light-transmitting group and a second pixel light-transmitting group,

the projection of one light hole in the first pixel light-transmitting group on the substrate layer is coincident with the projection of one light hole in the second pixel light-transmitting group on the substrate layer; or

The projections of three adjacent light holes in the first pixel light-transmitting group on the substrate layer are superposed with the projections of three adjacent light holes in the second pixel light-transmitting group on the substrate layer;

the projection of one light hole in the first pixel light-transmitting group on the substrate layer is superposed with the projection of one light hole in the second pixel light-transmitting group on the substrate layer, wherein the light holes superposed in the projection on the substrate layer are superposed light holes;

in the first pixel light-transmitting group, the coincident light-transmitting hole is taken as a starting point, two light-transmitting holes which are adjacent to the coincident light-transmitting hole in the clockwise direction and are positioned at two sides of the coincident light-transmitting hole are respectively a first light-transmitting hole and a second light-transmitting hole; in the second pixel light-transmitting group, the coincident light-transmitting hole is taken as a starting point, and two light-transmitting holes which are adjacent to the coincident light-transmitting hole in the clockwise direction and are positioned at two sides of the coincident light-transmitting hole are respectively a third light-transmitting hole and a fourth light-transmitting hole; the center of the second light hole, the center of the fourth light hole and the center of the coincident light hole are on the same straight line, and the center of the first light hole, the center of the third light hole and the center of the coincident light hole are on the same straight line.

2. The display panel of claim 1, wherein the pixel transmission group comprises at least one first pixel and a plurality of the transmission holes surrounding the first pixel, wherein the centers of the transmission holes surrounding the first pixel are on the same first circle.

3. The display panel according to claim 2, wherein a center of the first circle is a center of the first pixel.

4. The display panel of claim 1, wherein one of the pixel transmission groups comprises a first pixel and six transmission holes surrounding the first pixel.

5. The display panel according to claim 1, wherein the distance between the center of the second light hole and the center of the coincident light hole is equal to the distance between the center of the fourth light hole and the center of the coincident light hole; and the distance between the center of the first light hole and the center of the coincident light hole is equal to the distance between the center of the third light hole and the center of the coincident light hole.

6. The display panel according to claim 1, wherein the pixel transmission group includes:

a first sub-pixel light-transmitting group; and

a plurality of light transmission holes surrounding the periphery of the first sub-pixel light transmission group;

wherein the first sub-pixel light-transmitting group includes:

a first sub light-transmitting hole; and a plurality of first pixels surrounding the periphery of the first sub light-transmitting hole.

7. The display panel of claim 6, wherein the centers of each light hole around the perimeter of the first sub-pixel light transmission group are on the same second circle.

8. The display panel according to claim 7, wherein the center of the second circle coincides with the center of the first sub light-transmitting hole.

9. The display panel according to claim 1, wherein the pixel transmission group includes:

a second sub-pixel light-transmitting group;

a plurality of light transmission holes surrounding the periphery of the second sub-pixel light transmission group; and

the first pixels are arranged around the plurality of light holes;

wherein the second sub-pixel light-transmitting group includes:

a second sub light-transmitting hole; and

at least one second pixel, a projection of the second pixel on the substrate being within a projection of the second sub-aperture on the substrate layer.

10. The display panel of claim 9, wherein the second sub-pixel transmission group comprises: and the connecting line of the centers of the two second pixels passes through the center of the second sub light-transmitting hole.

11. The display panel according to claim 9, further comprising:

a driving circuit layer for driving the light emitting diode,

the driving circuit layer includes:

a plurality of first pixel driving circuits for driving the first pixels to emit light, respectively;

a plurality of first signal lines for supplying signals to the first pixel driving circuits;

at least one second pixel driving circuit, which is respectively used for driving the second pixels to emit light; and

at least one second signal line for providing a signal to the second pixel driving circuit;

the projections of the first pixel driving circuits, the second pixel driving circuits and the first signal lines on the substrate layer are all located in the projection of the light shielding layer on the substrate, and the at least one second signal line is a transparent signal line.

12. The display panel according to claim 10, further comprising:

a driving circuit layer for driving the light emitting diode,

the driving circuit layer includes:

a plurality of first pixel driving circuits for driving the first pixels to emit light, respectively; and

a plurality of first signal lines for supplying signals to the first pixel driving circuits;

the projections of the plurality of first pixel driving circuits and the plurality of signal lines on the substrate layer are all positioned in the projection of the light shielding layer on the substrate layer;

the second pixel and any one of a plurality of first pixels in the first display area share one first pixel driving circuit;

the second pixel is connected to the first pixel sharing one pixel driving circuit with the second pixel through a first metal wire.

13. The display panel according to claim 12,

the first pixel sharing one first pixel driving circuit with the second pixel includes:

the first anode is arranged on one side, far away from the substrate layer, of the driving circuit layer, and the first light-emitting function layer and the first cathode are arranged on one side, close to the first anode in a superposed mode, of the first anode, wherein the first anode is connected with the first pixel driving circuit;

the first anode comprises a first conductive layer, and a first insulating layer and a second conductive layer which are superposed on the first conductive layer;

the second pixel includes:

the second anode, the second light-emitting functional layer and the second cathode are arranged on one side, far away from the substrate layer, of the second anode in a superposed mode;

the second anode comprises a third conducting layer, and a second insulating layer and a fourth conducting layer which are superposed on the third conducting layer;

wherein the first conductive layer and the third conductive layer are connected by the first metal line;

the first metal wire and the first conducting layer are arranged on the same layer; or

The first metal wire and the third conductive layer are arranged on the same layer.

14. A display device comprising a display panel as claimed in any one of claims 1-13.