CN114613277A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN114613277A CN114613277A CN202210345867.5A CN202210345867A CN114613277A CN 114613277 A CN114613277 A CN 114613277A CN 202210345867 A CN202210345867 A CN 202210345867A CN 114613277 A CN114613277 A CN 114613277A
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- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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Abstract
The invention discloses a display panel and a display device. The display panel comprises a display substrate and a supporting layer; the supporting layer is arranged on the non-display surface of the display substrate, and the display substrate comprises a first area and a second area; the second area is at least partially arranged around the first area, and the light transmittance of the first area is higher than that of the second area; the support layer includes a first portion and a second portion, the first portion having a different thickness than the second portion. When the light sensation elements are arranged at the opposite positions of the first area of the display substrate, the phase difference of linear polarized light passing through the first part is large, so that rainbow patterns generated by wave crest superposition exceed the visual limit of human beings, human eyes cannot see the rainbow patterns, and the light sensation effect of the light sensation elements can be improved. Or the phase difference of the linear polarized light passing through the first part is small, so that the transmittance of the linear polarized light passing through the first part is stable, the probability of rainbow stripes generated by the linear polarized light is reduced, and the light sensation effect of the light sensation element is improved.
Description
Technical Field
The embodiment of the invention relates to the technical field of display, in particular to a display panel and a display device.
Background
The current display panels are moving towards full-screen. In the full screen, a transparent display area with larger light transmittance is required to be arranged in the display area for placing a camera and other structures. When comprehensive screen is used for the folding screen, display panel can be flexible display panel, then sets up the supporting layer at display panel's non-display surface for display panel can guarantee transparent display area's luminousness, guarantees display panel's resistant bending performance simultaneously.
After display panel forms display device, camera isotructure during operation in the display device, external light forms linear polarisation after through display panel, then transmits the supporting layer, and camera isotructure is transmitted to the rethread supporting layer to satisfy the light demand of camera isotructure. When the linearly polarized light is transmitted to the supporting layer, the birefringence phenomenon of the supporting layer enables the linearly polarized light to have phase difference, rainbow lines are formed easily when the structures such as a camera work, and the light sensation effect of the display device is reduced.
Disclosure of Invention
The invention provides a display panel and a display device, which are used for improving the light sensation effect of the display panel.
In a first aspect, an embodiment of the present invention provides a display panel, including a display substrate and a support layer;
the supporting layer is arranged on a non-display surface of the display substrate, and the display substrate comprises a first area and a second area; the second region is at least partially arranged around the first region, and the light transmittance of the first region is larger than that of the second region;
the support layer comprises a first part and a second part, the first part is the support layer arranged opposite to the first area, the second part is the support layer arranged opposite to the second area, and the thicknesses of the first part and the second part are different.
Optionally, the thickness of the first portion is greater than the thickness of the second portion;
optionally, the thickness of the first portion is greater than or equal to 75 microns.
Optionally, the first portion comprises a first sub-support layer and a second sub-support layer which are stacked;
the first sub-supporting layer is disposed between the display substrate and the second sub-supporting layer, and a thickness of the first sub-supporting layer is the same as a thickness of the second portion.
Optionally, the first sub-support layer is integrally formed with the second portion.
Optionally, the display panel further includes a first adhesive layer disposed between the first sub-support layer and the second sub-support layer, the first adhesive layer being used to adhere the first sub-support layer and the second sub-support layer.
Optionally, the thickness of the first portion is less than the thickness of the second portion;
optionally, the thickness of the first portion is less than or equal to 25 microns;
optionally, forming a groove on at least one side of the support layer to make the thickness of the first part smaller than that of the second part;
optionally, in a case that a groove is formed on one side of the support layer close to the display substrate, the groove is filled with a light-transmitting medium.
Optionally, a difference between the thicknesses of the first portion and the second portion is greater than or equal to 25 microns.
Optionally, the display panel further includes a second adhesive layer disposed between the display substrate and the support layer, and the second adhesive layer is used for adhering the display substrate and the support layer.
In a second aspect, an embodiment of the present invention further provides a display device, including a light sensing unit and the display panel of the first aspect;
the light sensing units are arranged on one side of the supporting layer, which is far away from the display substrate, and the light sensing units are arranged opposite to the first area.
In a third aspect, an embodiment of the present invention further provides a display device, including a light sensing unit and a display panel;
the display panel comprises a display substrate and a supporting layer; the supporting layer is arranged on a non-display surface of the display substrate, and the display substrate comprises a first area and a second area; the second region is at least partially arranged around the first region, and the light transmittance of the first region is larger than that of the second region;
the light sensing units are arranged on one side, away from the display substrate, of the supporting layer, and the light sensing units are arranged opposite to the first area; the light sensation unit comprises a light sensation element and a support film, and the support film is arranged on one side of the light sensation element close to the support layer.
According to the technical scheme of the embodiment of the invention, the thickness of the first part of the supporting layer is different from that of the second part, when the light sensing element is arranged at the relative position of the first area of the display substrate, the phase difference of linear polarized light passing through the first part is large, and the number of wave crests and wave troughs generated by the linear polarized light in the time of passing through the first part is large, so that the number of the wave crests and the wave troughs can be concentrated to exceed the visual limit of human, the rainbow patterns generated by the superposition of the wave crests exceed the visual limit of human, human eyes cannot see the rainbow patterns, and the light sensing effect of the light sensing element can be improved. Meanwhile, the thickness of the second part can be ensured to be smaller, and the bending resistance of the display substrate is ensured. Or can make the phase difference of the linear polarisation that passes the first portion very little, linear polarisation can not produce the crest trough in the time of passing the first portion this moment for linear polarisation does not have the crest superposition, and then makes the transmissivity through the linear polarisation of first portion steady, has reduced the probability that linear polarisation produced the rainbow line, and then has improved the light sense effect of light sense component. While the supporting effect of the second part on the display substrate is ensured.
Drawings
Fig. 1 is a schematic structural diagram of a display device provided in the prior art;
fig. 2 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a display device according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of another display device according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is a schematic structural diagram of a display device provided in the prior art. As shown in fig. 1, the display device includes a display panel 101, a support film 102, a polarizer 103, and a light-sensing element 104. The support film 102 is disposed on the non-display surface of the display screen 101, and may be bonded to the display screen 101 by a pressure-sensitive adhesive. The light sensing element 104 may be a camera, and in the thickness direction of the display screen 101, the light transmittance of the display screen area corresponding to the light sensing element 104 is greater than the light transmittance of other areas of the display screen, so as to ensure the light transmittance requirement of the light sensing element 104. The support film 102 has good transparency and bending resistance, and the bending performance of the display screen 101 can be ensured by arranging the support film 102 on one side of the non-display surface of the display screen 101, and meanwhile, the light transmittance of the display screen area corresponding to the light sensing element 104 is ensured. When the light sensing element 104 is operated, external light passes through the polarizer 103 to form linear polarized light, the linear polarized light passes through the display screen 101, is transmitted to the support film 102, and is decomposed into 2 vertical linear polarized lights through the support film 102. Meanwhile, because the linear polarized light has birefringence phenomenon when passing through the support film 102, phase difference occurs in 2 vertical linear polarized lights. The phase difference of the linear polarization light makes the light incident to the light sensing element 104 have a plurality of peaks and valleys, the color phases of the wavelengths corresponding to the different peaks are different, and the superposition of the plurality of peaks can make the light sensing element 104 generate rainbow stripes during operation, thereby reducing the light sensing effect of the light sensing element 104. Illustratively, when the light sensing element 104 is a camera, the superposition of the plurality of peaks can generate rainbow stripes on the photographing effect of the camera, thereby reducing the photographing effect of the camera.
In view of the above technical solutions, embodiments of the present invention provide a display panel. Fig. 2 is a schematic structural diagram of a display panel according to an embodiment of the present invention. As shown in fig. 2, the display panel includes a display substrate 110 and a support layer 120; the support layer 120 is disposed on a non-display surface of the display substrate 110, and the display substrate 110 includes a first region 111 and a second region 112; the second region 112 is at least partially disposed around the first region 111, and the light transmittance of the first region 111 is greater than that of the second region 112; the support layer 120 includes a first portion 121 and a second portion 122, the first portion 121 is the support layer 120 disposed opposite the first region 111, the second portion 122 is the support layer 120 disposed opposite the second region 112, and the thicknesses of the first portion 121 and the second portion 122 are different.
Specifically, the display substrate 110 may include a substrate, a driving circuit layer disposed on the substrate, and a light emitting device layer disposed on the driving circuit layer. The substrate may be a flexible substrate, for example the material of the substrate may be Polyimide (Polyimide). The driving circuit layer may be used to form a driving circuit for driving the light emitting device, and the light emitting device layer may be used to form the light emitting device. When the display substrate 110 is a top emission substrate, light emitted from the light emitting device is emitted from a side of the light emitting device away from the substrate, where the side of the light emitting device away from the substrate serves as a display surface of the display substrate 110 and the side of the substrate serves as a non-display surface of the display substrate 110. When the display substrate 110 is a bottom emission substrate, light emitted from the light emitting device is emitted from one side of the substrate, where the one side of the substrate serves as a display surface of the display substrate 110 and the side of the light emitting device away from the substrate serves as a non-display surface of the display substrate 110. The display substrate 110 may be a full-scale display substrate. When the display substrate 110 is a full-face display substrate, the second region 112 may be a regular display region of the display substrate 110 or become a main screen of the display substrate 110. The first region 111 may be a transparent display region of the display substrate 110, and may also be referred to as a sub-screen of the display substrate 110. Illustratively, the first region 111 may be in the shape of a circle, a drop, a U, etc., and fig. 2 exemplarily shows that the first region 111 is in the shape of a rectangle, and the second region 112 is disposed completely around the first region 111. The first area 111 may be provided with a light emitting device layer, and is not provided with a driving circuit layer, so as to ensure the light transmittance of the first area 111, so that the light transmittance of the first area 111 is greater than that of the second area 112, and then the light sensing element is arranged at the opposite position of the first area 111, so as to realize the light sensing under the screen of the display substrate 110, and further realize the full-screen display of the display substrate 110. Illustratively, the light sensing element can be a camera, and can realize the screen-down shooting of the display panel.
The support layer 120 is disposed on the non-display surface of the display substrate 110 and is used for supporting the display substrate 110. The light transmittance of the support layer 120 is relatively high, and the light transmittance of the first region 111 can be ensured. Meanwhile, the bending resistance of the support layer 120 is relatively high, and when the display panel is used for folding the display panel, the bending resistance of the display panel can be ensured. Illustratively, the material of the support layer 120 may be polyethylene terephthalate (PET). When the thicknesses of the first portion 121 and the second portion 122 are different, the thickness of the first portion 121 may be greater than that of the second portion 122, or the thickness of the first portion 121 may be smaller than that of the second portion 122, and fig. 2 exemplarily shows that the thickness of the first portion 121 is greater than that of the second portion 122.
When the display panel is used to form a display device, light sensing elements may be disposed at opposite positions of the first region 111 for implementing the off-screen light sensing of the display panel. When the light sensing element is used for sensing light, external light can form linear polarization after passing through the display substrate 110. Illustratively, the display substrate 110 may include a polarizer POL disposed at a side of the light emitting device layer remote from the substrate. The external light forms linear polarized light after passing through the polarizer POL, and then is transmitted to the support layer 120, and is decomposed into two perpendicular linear polarized lights through the support layer 120. Meanwhile, due to the birefringence of the linearly polarized light passing through the support layer 120, the two perpendicular linearly polarized lights have a phase difference. The thickness of the support layer 120 is related to the magnitude of the retardation of the linearly polarized light. When the material of the support layer 120 is unchanged, the larger the thickness of the support layer 120 is, the larger the phase difference of linearly polarized light is, and the smaller the thickness of the support layer 120 is, the smaller the phase difference of linearly polarized light is. In this embodiment, by setting the thicknesses of the first portion 121 and the second portion 122 to be different, when the thickness of the first portion 121 is greater than that of the second portion 122, the phase difference of the linearly polarized light passing through the first portion 121 is large, the number of peaks and troughs generated by the linearly polarized light in the time of passing through the first portion 121 is large, the number of peaks and troughs can be dense to exceed the visual limit of human, and then the rainbow texture generated by the superposition of peaks exceeds the visual limit of human, so that human eyes cannot see the rainbow texture, and the light sensation effect of the light sensation element can be improved. Meanwhile, the thickness of the second portion 122 can be ensured to be relatively small, and the bending resistance of the display substrate 110 can be ensured. Or, when the thickness of the first portion 121 is smaller than that of the second portion 122, the phase difference of the linearly polarized light of the first portion 121 is very small, and at this time, the linearly polarized light does not generate peaks and valleys in the time of passing through the first portion 121, so that the linearly polarized light is not superimposed by peaks, and further the transmittance of the linearly polarized light passing through the first portion 121 is stable, the probability of rainbow stripes generated by the linearly polarized light is reduced, and further the light sensation effect of the light sensation element is improved. While the supporting effect of the second portion 122 on the display substrate 110 can be ensured.
The technical scheme of this embodiment, the thickness through setting up the first part of supporting layer is different with the thickness of second part, when the relative position in the first region of display substrate sets up the light sense component, can make the phase difference of the linear polarization who passes the first part very big, the quantity of crest trough that linear polarization produced in the time of passing the first part this moment is many, make the quantity of crest trough can be intensive to surpassing human visual limit, and then make the rainbow line that the crest stack produced surpass human visual limit, make people's eye can not see the rainbow line, thereby can improve the light sense effect of light sense component. Meanwhile, the thickness of the second part can be ensured to be smaller, and the bending resistance of the display substrate is ensured. Or the phase difference of the linear polarized light passing through the first part is very small, and the linear polarized light can not generate wave crests and wave troughs in the time of passing through the first part at the moment, so that the linear polarized light is not superposed with the wave crests, the transmittance of the linear polarized light passing through the first part is stable, the probability of rainbow lines generated by the linear polarized light is reduced, and the light sensation effect of the light sensation element is improved. While the supporting effect of the second part on the display substrate is ensured.
With continued reference to fig. 2, it is exemplarily shown in fig. 2 that the thickness of the first portion 121 is greater than the thickness of the second portion 122. Through setting up the thickness that the thickness of first part 121 is greater than the thickness of second part 122, can make the phase difference of the linear polarization light that passes first part 121 very big, the quantity of crest trough that linear polarization light produced in the time of passing first part 121 this moment is many for the quantity of crest trough can be concentrated and surpass human visual limit, and then make the rainbow line that the crest stack produced surpass human visual limit, make human eyes can not see the rainbow line, thereby can improve the light sense effect of light sense element.
Optionally, the thickness of the first portion 121 is greater than or equal to 75 microns.
Specifically, when the thickness of the first portion 121 is greater than or equal to 75 μm, a large phase difference may occur when linearly polarized light passes through the first portion 121, and peaks and valleys whose density exceeds the visual limit of a human are formed, so that rainbow stripes are not visible to the human eye, and thus the light sensation effect of the light sensation element may be improved. Illustratively, when the material of the support layer 120 is a PET material, by setting the thickness of the first portion 121 to be greater than or equal to 75 micrometers, the phase difference of linearly polarized light passing through the first portion 121 may be greater than or equal to 2000nm, and thus, a peak valley beyond the limit of human vision may be formed.
Fig. 3 is a schematic structural diagram of another display panel according to an embodiment of the present invention. As shown in fig. 3, the first portion 121 includes a first sub-support layer 1211 and a second sub-support layer 1212 which are stacked; the first sub-support layer 1211 is disposed between the display substrate 110 and the second sub-support layer 1212, and a thickness of the first sub-support layer 1211 is the same as a thickness of the second portion 122.
Specifically, the thickness of the first portion 121 is the sum of the thickness of the first sub-support layer 1211 and the thickness of the second sub-support layer 1212, when the thickness of the first sub-support layer 1211 is the same as the thickness of the second portion 122, the difference between the thickness of the first portion 121 and the thickness of the second portion 122 is the thickness of the second sub-support layer 1212, and the thickness of the first portion 121 is greater than the thickness of the second portion 122. At this time, the phase difference of the linearly polarized light passing through the first portion 121 can be made large, the number of peaks and troughs generated by the linearly polarized light in the time of passing through the first portion 121 is large, the number of the peaks and the troughs can be concentrated to exceed the visual limit of human, and then the rainbow patterns generated by the superposition of the peaks exceed the visual limit of human, so that human eyes cannot see the rainbow patterns, and the light sensation effect of the light sensation element can be improved. Meanwhile, the thickness of the second portion 122 can be ensured to be small, and the bending resistance of the display substrate 110 can be ensured.
It should be noted that the material of the first sub-support layer 1211 and the material of the second sub-support layer 1212 may be the same, and the material of the first sub-support layer 1211 and the material of the second portion 122 may be the same. Illustratively, the materials of the first sub-support layer 1211, the second sub-support layer 1212, and the second portion 122 may all be PET materials.
Optionally, with continued reference to fig. 3, the first sub-support layer 1211 is integrally formed with the second portion 122.
Specifically, the thickness of the first sub-support layer 1211 is the same as the thickness of the second portion 122, so that the first sub-support layer 1211 and the second portion 122 are integrally formed, that is, the first sub-support layer 1211 and the second portion 122 are formed in the same process as an integral film, which can reduce the process flow of the display panel. A second sub-support layer 1212 is then provided on a side of the first sub-support layer 1211 facing away from the display substrate 110 to achieve a thickness of the first portion 121 greater than a thickness of the second portion 122.
With continued reference to fig. 3, the display panel further includes a first adhesive layer 130, the first adhesive layer 130 is disposed between the first sub-support layer 1211 and the second sub-support layer 1212, and the first adhesive layer 130 is used to adhere the first sub-support layer 1211 and the second sub-support layer 1212.
Specifically, the first adhesive layer 130 has adhesiveness, and by disposing the first adhesive layer 130 between the first sub-support layer 1211 and the second sub-support layer 1212, an additional layer of the second sub-support layer 1212 may be attached to the first sub-support layer 1211 through the first adhesive layer 130, so that the thickness of the first portion 121 may be increased to adjust the thickness difference between the first portion 121 and the second portion 122. Illustratively, the first adhesive layer 130 may be a Pressure Sensitive Adhesive (PSA).
In other embodiments, the thickness of the first portion may also be provided to be less than the thickness of the second portion. Fig. 4 is a schematic structural diagram of another display panel according to an embodiment of the present invention. As shown in fig. 4, the thickness of the first portion 121 is smaller than that of the second portion 122.
Specifically, by setting the thickness of the first portion 121 to be smaller than the thickness of the second portion 122, the phase difference of the linearly polarized light passing through the first portion 121 can be small, and at the moment, the linearly polarized light does not generate wave peaks and wave troughs in the time of passing through the first portion 121, so that the linearly polarized light is not superposed with wave peaks, the transmittance of the linearly polarized light passing through the first portion 121 is stable, the probability of rainbow stripes generated by the linearly polarized light is reduced, and the light sensing effect of the light sensing element is improved. While the supporting effect of the second portion 122 on the display substrate 110 can be ensured.
Optionally, the thickness of the first portion 121 is less than or equal to 25 microns.
Specifically, when the thickness of the first portion 121 is less than or equal to 25 micrometers, the phase difference is very small when the linearly polarized light passes through the first portion 121, and the linearly polarized light does not generate peaks and valleys in the time of passing through the first portion 121, so that the linearly polarized light is not superimposed by the peaks, the transmittance of the linearly polarized light passing through the first portion 121 is stable, the probability of rainbow stripes generated by the linearly polarized light is reduced, and the light sensation effect of the light sensation element is improved. Illustratively, when the material of the support layer is a PET material, by setting the thickness of the first portion to be less than or equal to 25 micrometers, the phase difference of linearly polarized light passing through the first portion 121 can be made to be less than or equal to 300nm, so that the linearly polarized light can be prevented from generating peaks and valleys in the time of passing through the first portion 121.
With continued reference to fig. 4, a recess a is formed on at least one side of the support layer 120 such that the thickness of the first portion 121 is less than the thickness of the second portion 122.
Specifically, fig. 4 exemplarily shows that the groove a is disposed on one side of the support layer 120 away from the display substrate 110, and the groove a is disposed corresponding to the first region 111, so that the thickness of the first portion 121 is smaller than that of the second portion 122, thereby the phase difference is very small when the linearly polarized light passes through the first portion 121, the linearly polarized light does not generate peaks and valleys in the time of passing through the first portion 121, so that the linearly polarized light has no peaks and valleys superimposed, and further the transmittance of the linearly polarized light passing through the first portion 121 is stable, the probability of the linearly polarized light generating rainbow stripes is reduced, and further the light sensation effect of the light sensation element is improved. Illustratively, the depth of the groove a may be half the thickness of the support layer 120.
It should be noted that, in other embodiments, the groove a may also be disposed on a side of the support layer 120 close to the display substrate 110, and only the position of the groove a is disposed corresponding to the first region 111. Fig. 5 is a schematic structural diagram of another display panel according to an embodiment of the present invention. As shown in fig. 5, the groove a is disposed on a side of the support layer 120 close to the display substrate 110 and corresponds to the first region 111, and the thickness of the first portion 121 may be smaller than that of the second portion 122. Alternatively, in other embodiments, the grooves a may be formed on both sides of the support layer 120 and arranged corresponding to the first regions 111, so that the thickness of the first portion 121 is smaller than that of the second portion 122.
With continued reference to fig. 5, in the case where the groove a is formed at a side of the support layer 120 close to the display substrate 110, the groove a is filled with the light-transmitting medium 150.
Specifically, the light-transmitting medium 150 has viscosity and high light transmittance, and the light-transmitting medium 150 is filled in the groove a, so that the first portion 121 and the display substrate 110 can be bonded through the light-transmitting medium 150 on the basis of ensuring the light transmittance of the first region 111, and thus the supporting layer 120 and the display substrate 110 can be fixed, and an additional bonding layer is avoided. Illustratively, the light-transmitting medium 150 may be an optical glue.
In addition to the above aspects, the difference between the thicknesses of the first portion and the second portion is greater than or equal to 25 micrometers.
In particular, the support layer is used to support the display substrate, and when the display panel is used to fold the display panel, the support layer also needs to ensure the bending resistance of the display panel. By setting the difference between the thicknesses of the first part and the second part to be greater than or equal to 25 micrometers, the thickness of the first part is ensured to be large enough when the thickness of the first part is greater than that of the second part, and linear polarized light has a large phase difference when passing through the first part, so that peaks and valleys with the concentration exceeding the visual limit of human beings are formed. Or when the thickness of the first part is smaller than that of the second part, the thickness of the first part is small enough, the phase difference is small when the linearly polarized light passes through the first part, and peaks and troughs cannot be generated. Illustratively, when the material of the support layer is a PET material, the thickness of the support layer may be 50 micrometers, so as to ensure the bending resistance of the display panel while ensuring the supporting function. The difference between the thicknesses of the first and second portions may be set to be greater than or equal to 25 microns at this time to ensure that the thickness of the first portion is greater than or equal to 75 microns when the thickness of the first portion is greater than the thickness of the second portion, or less than or equal to 25 microns when the thickness of the first portion is less than the thickness of the second portion. For example, when the thickness of the first portion is greater than that of the second portion, the first portion may include a first sub-support layer and a second sub-support layer, the thickness of the first sub-support layer is the same as that of the second portion, the thickness of the first sub-support layer and that of the second portion may be 50 micrometers, and the thickness of the second sub-support layer may also be 50 micrometers, where the thickness of the first portion is 100 micrometers, so that a large phase difference is ensured when linearly polarized light passes through the first portion, and peaks and valleys with a density exceeding the human visual limit are formed.
Fig. 6 is a schematic structural diagram of another display panel according to an embodiment of the present invention. As shown in fig. 6, the display panel further includes a second adhesive layer 140, the second adhesive layer 140 is disposed between the display substrate 110 and the support layer 120, and the second adhesive layer 140 is used for adhering the display substrate 110 and the support layer 120.
Specifically, the second adhesive layer 140 has an adhesive property, and by disposing the second adhesive layer 140 between the display substrate 110 and the support layer 120, the display substrate 110 and the support layer 120 may be fixed by the adhesive property of the second adhesive layer 140. Illustratively, the second adhesive layer 140 may be a Pressure Sensitive Adhesive (PSA).
The embodiment of the invention also provides a display device. Fig. 7 is a schematic structural diagram of a display device according to an embodiment of the present invention. As shown in fig. 7, the display device includes a light sensing unit 20 and a display panel 10 according to any embodiment of the present invention; the light sensing unit 20 is disposed on a side of the support layer 120 away from the display substrate 110, and the light sensing unit 20 is disposed opposite to the first region 111.
Specifically, the light sensing unit 20 is disposed opposite to the first region 111, and when the light sensing unit 20 is in operation, external light can be transmitted to the light sensing unit 20 through the display substrate 110 and the supporting layer 120, so as to meet the requirement of the light sensing unit 20 on light during operation. Illustratively, the light sensing unit 20 may be a camera.
According to the technical scheme of the embodiment of the invention, the difference of the positions of the linearly polarized light passing through the first part is large by setting the thickness of the first part of the supporting layer to be different from that of the second part, and the number of peaks and troughs generated by the linearly polarized light in the time of passing through the first part is large, so that the number of the peaks and the troughs can be concentrated to exceed the visual limit of human beings, and further rainbow grains generated by the superposition of the peaks exceed the visual limit of the human beings, so that human eyes cannot see the rainbow grains, and the light sensation effect of the light sensation unit can be improved. Meanwhile, the thickness of the second part can be ensured to be smaller, and the bending resistance of the display substrate is ensured. Or the phase difference of the linear polarized light passing through the first part is very small, the linear polarized light can not generate wave crests and wave troughs in the time of passing through the first part at the moment, so that the linear polarized light is not superposed with the wave crests, the transmittance of the linear polarized light passing through the first part is stable, the probability of rainbow lines generated by the linear polarized light is reduced, and the light sensation effect of the light sensation unit is improved. While the supporting effect of the second part on the display substrate is ensured.
The embodiment of the invention also provides another display device. Fig. 8 is a schematic structural diagram of another display device according to an embodiment of the present invention. As shown in fig. 8, the display device includes a light sensing unit 20 and a display panel 10; the display panel 10 includes a display substrate 110 and a support layer 120; the support layer 120 is disposed on a non-display surface of the display substrate 110, and the display substrate 110 includes a first region 111 and a second region 112; the second region 112 is at least partially disposed around the first region 111, and the light transmittance of the first region 111 is greater than that of the second region 112; the light sensing unit 20 is disposed on a side of the support layer 120 away from the display substrate 110, and the light sensing unit 20 is disposed opposite to the first region 111; the light sensing unit 20 includes a light sensing element 21 and a support film 22, and the support film 22 is disposed on a side of the light sensing element 21 close to the support layer 120.
Specifically, the difference between the display device provided in fig. 8 and the display device provided in fig. 7 is that the thickness of the support layer corresponding to the first area 111 is equal to that of the support layer corresponding to the second area 112, and the support film 22 is additionally disposed on the side of the light-sensing element 21 close to the support layer 120, so that external light passes through the display substrate 110, then passes through the support layer corresponding to the first area 111 and the support film 22, and then enters the light-sensing element 21, at this time, the thickness of the support structure through which linearly polarized light corresponding to the first area 111 passes is the sum of the thickness of the support layer 120 and the thickness of the support film 22, so that the difference between the thickness of the support structure corresponding to the first area 111 and the thickness of the support structure corresponding to the second area 112 is the thickness of the support film 22, that is the thickness of the support structure corresponding to the first area 111 is greater than that of the thickness of the support structure corresponding to the second area 112, so that the phase of the linearly polarized light passing through the support structure corresponding to the first area 111 is greatly different, the linear polarization light passes through the first region 111 and has a large number of wave crests and wave troughs generated in the time corresponding to the support structure, so that the number of the wave crests and the wave troughs can be concentrated to exceed the visual limit of human beings, and then rainbow patterns generated by wave crest superposition exceed the visual limit of human beings, so that human eyes cannot see the rainbow patterns, and the light sensation effect of the light sensation element can be improved. Meanwhile, the thickness of the supporting structure corresponding to the second region 112 can be ensured to be smaller, and the bending resistance of the display substrate can be ensured.
The support film 22 may be fixedly connected to the light-sensing element 21 by an adhesive layer. Illustratively, the adhesive layer may be a PSA. In addition, the material of the support film 22 may be the same as that of the support layer 120. Illustratively, the material of the support film 22 and the material of the support layer 120 may both be PET material.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A display panel is characterized by comprising a display substrate and a supporting layer;
the supporting layer is arranged on a non-display surface of the display substrate, and the display substrate comprises a first area and a second area; the second region is at least partially arranged around the first region, and the light transmittance of the first region is larger than that of the second region;
the supporting layer comprises a first part and a second part, the first part is the supporting layer arranged opposite to the first area, the second part is the supporting layer arranged opposite to the second area, and the thicknesses of the first part and the second part are different.
2. The display panel according to claim 1, wherein a thickness of the first portion is larger than a thickness of the second portion;
optionally, the thickness of the first portion is greater than or equal to 75 microns.
3. The display panel according to claim 2, wherein the first portion comprises a first sub-support layer and a second sub-support layer which are stacked;
the first sub-supporting layer is disposed between the display substrate and the second sub-supporting layer, and a thickness of the first sub-supporting layer is the same as a thickness of the second portion.
4. The display panel of claim 3, wherein the first sub-support layer is integrally formed with the second portion.
5. The display panel according to claim 3, further comprising a first adhesive layer disposed between the first sub-support layer and the second sub-support layer, wherein the first adhesive layer is used to adhere the first sub-support layer and the second sub-support layer.
6. The display panel according to any one of claims 1, wherein the thickness of the first portion is smaller than the thickness of the second portion;
optionally, the thickness of the first portion is less than or equal to 25 microns;
optionally, forming a groove on at least one side of the support layer to make the thickness of the first part smaller than that of the second part;
optionally, in a case that a groove is formed on one side of the support layer close to the display substrate, the groove is filled with a light-transmitting medium.
7. The display panel according to any one of claims 1 to 6, wherein a difference between thicknesses of the first portion and the second portion is greater than or equal to 25 μm.
8. The display panel according to any one of claims 1 to 6, further comprising a second adhesive layer disposed between the display substrate and the support layer, the second adhesive layer being for adhering the display substrate and the support layer.
9. A display device comprising a light-sensing unit and the display panel according to any one of claims 1 to 8;
the light sensing units are arranged on one side, away from the display substrate, of the supporting layer, and the light sensing units are arranged opposite to the first area.
10. A display device is characterized by comprising a light sensing unit and a display panel;
the display panel comprises a display substrate and a supporting layer; the supporting layer is arranged on a non-display surface of the display substrate, and the display substrate comprises a first area and a second area; the second region is at least partially arranged around the first region, and the light transmittance of the first region is larger than that of the second region;
the light sensing units are arranged on one side of the supporting layer, which is far away from the display substrate, and the light sensing units are arranged opposite to the first area; the light sensation unit comprises a light sensation element and a support film, and the support film is arranged on one side of the light sensation element close to the support layer.
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| CN202210345867.5A CN114613277A (en) | 2022-03-31 | 2022-03-31 | Display panel and display device |
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| CN202210345867.5A CN114613277A (en) | 2022-03-31 | 2022-03-31 | Display panel and display device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115394187A (en) * | 2022-07-14 | 2022-11-25 | 合肥维信诺科技有限公司 | Supporting film group, display panel and preparation method of display panel |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09127885A (en) * | 1995-10-30 | 1997-05-16 | Sony Corp | Display element |
| JPH10197852A (en) * | 1997-01-08 | 1998-07-31 | Seiko Epson Corp | Liquid crystal display element provided with input function, and electronic instrument |
| CN1700066A (en) * | 2004-05-21 | 2005-11-23 | 三洋电机株式会社 | Semi penetration type liquid crystal display and colorful liquid crystal display device |
| CN101363929A (en) * | 2007-08-08 | 2009-02-11 | 三星康宁精密琉璃株式会社 | Color compensation multi-layered member for display apparatus, optical filter and display apparatus |
| CN106030479A (en) * | 2014-02-21 | 2016-10-12 | 株式会社Lg化学 | Electronic board |
| CN108735783A (en) * | 2017-04-24 | 2018-11-02 | 三星显示有限公司 | Display device and its manufacturing method |
| CN112002253A (en) * | 2020-08-24 | 2020-11-27 | 昆山国显光电有限公司 | Display panel, manufacturing method of display panel and display device |
| CN113227856A (en) * | 2018-12-28 | 2021-08-06 | 大日本印刷株式会社 | Optical film, polarizer protective film, transfer body for polarizer protective film, polarizing plate, image display device, and method for producing polarizer protective film |
| CN113272689A (en) * | 2018-11-13 | 2021-08-17 | 大日本印刷株式会社 | Optical film, polarizing plate, surface plate for image display device, and image display device |
| CN113593414A (en) * | 2021-07-30 | 2021-11-02 | 京东方科技集团股份有限公司 | Display panel and display device |
| CN113986037A (en) * | 2021-10-19 | 2022-01-28 | 武汉华星光电半导体显示技术有限公司 | Display panel and mobile terminal |
-
2022
- 2022-03-31 CN CN202210345867.5A patent/CN114613277A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09127885A (en) * | 1995-10-30 | 1997-05-16 | Sony Corp | Display element |
| JPH10197852A (en) * | 1997-01-08 | 1998-07-31 | Seiko Epson Corp | Liquid crystal display element provided with input function, and electronic instrument |
| CN1700066A (en) * | 2004-05-21 | 2005-11-23 | 三洋电机株式会社 | Semi penetration type liquid crystal display and colorful liquid crystal display device |
| CN101363929A (en) * | 2007-08-08 | 2009-02-11 | 三星康宁精密琉璃株式会社 | Color compensation multi-layered member for display apparatus, optical filter and display apparatus |
| CN106030479A (en) * | 2014-02-21 | 2016-10-12 | 株式会社Lg化学 | Electronic board |
| CN108735783A (en) * | 2017-04-24 | 2018-11-02 | 三星显示有限公司 | Display device and its manufacturing method |
| CN113272689A (en) * | 2018-11-13 | 2021-08-17 | 大日本印刷株式会社 | Optical film, polarizing plate, surface plate for image display device, and image display device |
| CN113227856A (en) * | 2018-12-28 | 2021-08-06 | 大日本印刷株式会社 | Optical film, polarizer protective film, transfer body for polarizer protective film, polarizing plate, image display device, and method for producing polarizer protective film |
| CN112002253A (en) * | 2020-08-24 | 2020-11-27 | 昆山国显光电有限公司 | Display panel, manufacturing method of display panel and display device |
| CN113593414A (en) * | 2021-07-30 | 2021-11-02 | 京东方科技集团股份有限公司 | Display panel and display device |
| CN113986037A (en) * | 2021-10-19 | 2022-01-28 | 武汉华星光电半导体显示技术有限公司 | Display panel and mobile terminal |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115394187A (en) * | 2022-07-14 | 2022-11-25 | 合肥维信诺科技有限公司 | Supporting film group, display panel and preparation method of display panel |
| CN115394187B (en) * | 2022-07-14 | 2024-02-02 | 合肥维信诺科技有限公司 | Support film group, display panel and preparation method of display panel |
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