WO2020237469A1 - 显示面板和显示装置 - Google Patents
显示面板和显示装置 Download PDFInfo
- Publication number
- WO2020237469A1 WO2020237469A1 PCT/CN2019/088602 CN2019088602W WO2020237469A1 WO 2020237469 A1 WO2020237469 A1 WO 2020237469A1 CN 2019088602 W CN2019088602 W CN 2019088602W WO 2020237469 A1 WO2020237469 A1 WO 2020237469A1
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- WIPO (PCT)
- Prior art keywords
- light
- display panel
- curved
- emitting area
- emitting
- Prior art date
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- 230000007423 decrease Effects 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 11
- 239000000463 material Substances 0.000 description 5
- 239000011521 glass Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/841—Self-supporting sealing arrangements
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/38—Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/40—OLEDs integrated with touch screens
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/80—Constructional details
- H10K59/87—Passivation; Containers; Encapsulations
- H10K59/871—Self-supporting sealing arrangements
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/80—Constructional details
- H10K59/875—Arrangements for extracting light from the devices
- H10K59/879—Arrangements for extracting light from the devices comprising refractive means, e.g. lenses
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K2102/00—Constructional details relating to the organic devices covered by this subclass
- H10K2102/301—Details of OLEDs
- H10K2102/351—Thickness
Definitions
- the embodiment of the present disclosure relates to a display panel and a display device.
- LCD liquid crystal display
- OLED Organic Light Emitting Diode
- a light-shielding layer is provided on the periphery of the display panel to shield the wiring around the display panel.
- the presence of the light-shielding layer causes the display panel to have a wider frame, and the display area of the display panel for display occupies a relatively small area.
- the embodiment of the present disclosure provides a display panel and a display device.
- the display panel includes a display panel body and a cover plate; the display panel body has a light-emitting surface, and the cover plate covers the light-emitting surface of the display panel body; the light-emitting surface includes a flat light-emitting area and a curved light-emitting area, and the cover plate includes a curved light-emitting area covering the curved light-emitting area. Section; From the flat light emitting area to the curved light emitting area in the direction, the thickness of each position on the curved portion gradually decreases.
- the curved portion can deflect the light emitted from the curved light-emitting area to the normal direction of the flat light-emitting area, thereby reducing the viewing angle of the user when viewing the display panel from the front, and avoiding color shift caused by excessive viewing angle.
- At least one embodiment of the present disclosure provides a display panel, which includes a display panel body having a light emitting surface; and a cover plate covering the light emitting surface of the display panel body, the light emitting surface including a flat light emitting area and a curved light emitting area
- the cover plate includes a curved portion covering the curved light-emitting area, and the thickness of each position on the curved portion gradually decreases from the flat light-emitting area to the curved light-emitting area.
- the curved portion is curved toward the side where the display panel body is located, and the curved portion includes: a first surface located at the curved portion away from the curved light emitting And a second surface located on the side of the curved portion close to the curved light-emitting area.
- the first surface includes a first position
- the second surface includes a second position
- the normal of the second position passes through the first position, so
- n0 is the refractive index of air
- n1 is the refractive index of the cover plate
- ⁇ The value range of is 30-50 degrees.
- the value range of ⁇ is 40-41 degrees.
- the radius of curvature of each position on the first surface is the same
- the radius of curvature of each position on the second surface is the same
- the radius of curvature of the first surface is greater than The radius of curvature of the second surface.
- the display panel body includes an organic light emitting element.
- the organic light emitting element includes: a first light emitting element configured to emit light of a first color; and a second light emitting element configured to emit light of a second color.
- the degree of attenuation of the brightness of the first light-emitting element with viewing angle is greater than the degree of attenuation of the brightness of the second light-emitting element with viewing angle.
- the organic light emitting element further includes: a third light emitting element configured to emit light of a third color, the first color is red, and the second color Is green, and the third color is blue.
- the cover plate further includes a flat portion covering the flat light-emitting area, and each position on the flat portion has the same thickness.
- the cover plate is a transparent substrate.
- the material of the cover plate includes glass.
- the thickness at the position where the bent portion and the flat portion meet is the same as the thickness of the flat portion.
- the surface of the cover plate away from the display panel body is a continuous surface.
- the display panel provided by an embodiment of the present disclosure further includes a touch structure at least located between the curved light-emitting area and the curved portion to implement a touch function on the side edge of the display panel.
- the curved light-emitting area is located at the periphery of the flat light-emitting area.
- the curved light-emitting area is located on both sides of the flat light-emitting area.
- At least one embodiment of the present disclosure also provides a display device including the above-mentioned display panel.
- FIG. 1 is a schematic structural diagram of a display panel with curved edges
- FIG. 2 is a schematic structural diagram of a display panel provided according to an embodiment of the present disclosure
- FIG. 3 is a partial enlarged schematic diagram of the display panel shown in FIG. 2;
- FIG. 4 is a schematic diagram of an organic light emitting display element provided according to an embodiment of the present disclosure.
- FIG. 5 is a schematic structural diagram of another display panel according to an embodiment of the present disclosure.
- FIG. 6 is a schematic diagram of a display device provided according to an embodiment of the present disclosure.
- Figure 1 shows a display panel with curved edges. As shown in FIG.
- the display panel includes a display panel body 10 and a cover plate 30;
- the display panel body 10 has a light emitting surface 20 that includes a flat light emitting area 21 and a curved light emitting area 22;
- the cover plate 30 includes a flat portion 31 and The curved portion 32, the flat portion 31 covers the flat light-emitting area 21, and the curved portion 32 covers the curved light-emitting area 22.
- the curved portion 32 of the cover plate 30 has an arc
- the user's line of sight and the light emitted from the curved portion have a larger viewing angle (for example, a viewing angle of about 40°).
- a larger viewing angle will cause a color shift on the curved edge of the display panel. Since the brightness attenuation of the normal red sub-pixel with viewing angle is greater than that of the green sub-pixel with viewing angle, the color shift phenomenon of the curved edge of the display panel usually appears as a green phenomenon.
- inventions of the present disclosure provide a display panel and a display device.
- the display panel includes a display panel body and a cover plate; the display panel body has a light-emitting surface, and the cover plate covers the light-emitting surface of the display panel body; the light-emitting surface includes a flat light-emitting area and a curved light-emitting area, and the cover plate includes a curved light-emitting area covering the curved light-emitting area. Section; From the flat light emitting area to the curved light emitting area in the direction, the thickness of each position on the curved portion gradually decreases.
- the curved portion can deflect the light emitted from the curved light-emitting area to the normal direction of the flat light-emitting area, thereby reducing the viewing angle of the user when viewing the display panel from the front, and avoiding color shift caused by excessive viewing angle.
- FIG. 2 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure.
- FIG. 3 is a partial enlarged schematic diagram of the display panel shown in the dashed frame in FIG. 2.
- the display panel 100 includes a display panel body 110 and a cover plate 130; the display panel body 110 has a light emitting surface 120, and the cover plate 130 covers the light emitting surface 120 of the display panel body 110.
- the light-emitting surface 120 includes a flat light-emitting area 121 and a curved light-emitting area 122.
- the cover plate 130 includes a curved portion 132 covering the curved light-emitting area 122; the thickness of each position on the curved portion 132 from the flat light-emitting area 121 to the curved light-emitting area 122 slowing shrieking.
- the boundary line dashed line
- FIGS. 2 and 3 the boundary line between the flat light-emitting area and the curved light-emitting area is drawn in FIGS. 2 and 3.
- the above-mentioned boundary line does not mean flat
- the light-emitting area and the curved light-emitting area are different in materials.
- the thickness of each position on the curved portion gradually decreases.
- the curved portion can emit light from the curved light-emitting area.
- the light is deflected to the normal direction of the flat light-emitting area, thereby reducing the viewing angle when the user observes the display panel from the front, thereby avoiding the inconsistent brightness decay (RGB L-Decay) of the red, green and blue sub-pixels with the viewing angle because the viewing angle is larger
- the resulting color shift occurs on the curved edge of the display panel.
- the cover 130 may be a transparent cover so that the light emitted by the display panel body 110 can be transmitted.
- the material of the cover 130 includes glass, that is, the cover 130 is a glass cover, so that on the one hand, the light emitted by the display panel body 110 can be better transmitted, and on the other hand, the 110 for good protection.
- the embodiments of the present disclosure include but are not limited thereto, and the cover 130 may also be made of other suitable materials.
- the cover plate 130 further includes a flat portion 131 covering the flat light-emitting area 121, and the thickness of each position on the flat portion 131 is the same.
- the surface of the cover 130 away from the display panel body 110 is a continuous surface, that is, the surface of the flat portion 131 away from the display panel body 110 and the surface of the curved portion 132 away from the display panel body 110 are connected. continuously.
- the thickness at the position where the curved portion 132 and the flat portion 131 meet is the same as the thickness of the flat portion 131.
- the curved portion 132 can direct the light emitted by the curved light-emitting area 122 to the flat light-emitting area 121.
- the line direction deflection can reduce the viewing angle when the user observes the display panel from the front, thereby avoiding the color shift caused by the excessive viewing angle.
- the curved portion 132 is curved in a direction away from the light emitting surface 120, that is, the curved portion 132 is curved toward the side where the display panel body 110 is located.
- the curved portion 132 includes a first surface 1321 and a second surface 1322; the first surface 1321 is located on the side of the curved portion 132 away from the curved light emitting area 122, and the second surface 1322 is located on the side of the curved portion 132 close to the curved light emitting area 122.
- the second surface 1322 may be placed close to the display panel body 110.
- the first surface 1321 includes a first position 141
- the second surface 1322 includes a second position 142
- the normal of the second position 142 passes through the first position 141
- n0 is the refractive index of air
- n1 is the refractive index of the cover plate
- the value range of ⁇ is 30-50 degrees.
- ⁇ is the angle at which the curved part can deflect the light emitted by the curved light-emitting area to the normal direction of the flat light-emitting area.
- ⁇ is in the range of 30-50 degrees, it can effectively avoid the red, green and blue sub-pixels.
- the brightness attenuation (RGB L-Decay) with the viewing angle is inconsistent, color shift occurs at the curved edge of the display panel due to the large viewing angle.
- the curvature of each position on the first surface can be calculated according to the curvature of each position on the second surface, so that each position on the curved portion
- the light emitted by the curved light-emitting area can be deflected to the normal direction of the flat light-emitting area by the aforementioned ⁇ angle.
- the value range of ⁇ is 40-41 degrees, which can further effectively avoid the red, green and blue sub-pixels.
- the brightness attenuation (RGB L-Decay) with the viewing angle is inconsistent, color shift occurs at the curved edge of the display panel due to the large viewing angle.
- the radius of curvature of each position on the first surface 1321 is the same, and the radius of curvature of each position on the second surface 1322 is the same, thereby facilitating manufacturing.
- the radius of curvature of each position on the first surface 1321 is the same and the radius of curvature of each position on the second surface 1322 is the same, the radius of curvature of the first surface 1321 is greater than the radius of curvature of the second surface 1322.
- the embodiments of the present disclosure include but are not limited to this.
- the radius of curvature of each position on the first surface may also be different, and the radius of curvature of each position on the second surface may also be different.
- the radius of curvature of each position on the second surface may be based on The radius of curvature of each position on the curved light-emitting area of the display panel body is determined, and the radius of curvature of each position on the first surface can be determined according to the radius of curvature of each position on the second surface.
- the curved portion can deflect the light emitted from the curved light-emitting area by approximately 41 degrees to the normal direction of the flat light-emitting area, so that the viewing angle of the user when viewing the display panel from the front is close to zero, which can completely Avoid the phenomenon of color shift on the curved edge of the display panel caused by the large viewing angle when the brightness attenuation (RGB L-Decay) of the red, green and blue sub-pixels is inconsistent with the viewing angle.
- RGB L-Decay brightness attenuation
- the curved light-emitting area 122 is located at the periphery of the flat light-emitting area 121, thereby narrowing or even eliminating the frame of the display panel.
- the curved light-emitting area 122 is located on both sides of the flat light-emitting area 121, so that it may also be convenient for human hands to hold.
- the display panel body may include an organic light emitting display element 112, that is, the display panel may be an organic light emitting display panel. Since the brightness attenuation (RGB L-Decay) of the red, green, and blue sub-pixels with the viewing angle in a common organic light-emitting display panel is more inconsistent, the display panel provided by the embodiments of the present disclosure can better improve the performance of the organic light-emitting display panel. The phenomenon of color shift at the edge.
- the embodiments of the present disclosure include but are not limited thereto, and the display panel body may also adopt other suitable display structures.
- FIG. 4 is a schematic diagram of an organic light emitting display element provided according to an embodiment of the present disclosure.
- the organic light-emitting element 112 includes a first light-emitting element 1121 and a second light-emitting element 1122; the first light-emitting element 1121 is configured to emit light of a first color, and the second light-emitting element 1122 is configured to emit a second color. ⁇ ; the brightness of the first light-emitting element 1121 with viewing angle attenuation degree is greater than the brightness of the second light-emitting element 1122 with viewing angle attenuation degree.
- the curved portion can deflect the light emitted from the curved light-emitting area to the normal direction of the flat light-emitting area, thereby reducing the viewing angle of the user when viewing the display panel from the front, and avoiding the first light-emitting element 1121 and the second light-emitting element 1122
- the brightness attenuation is inconsistent, thereby avoiding the color shift of the curved edge of the display panel due to the large viewing angle when the brightness attenuation (RGB L-Decay) of the first light-emitting element 1121 and the second light-emitting element 1122 is inconsistent with the viewing angle.
- the first light emitting element 1121 is configured to emit red light
- the second light emitting element 1122 is configured to emit green light. Therefore, the curved portion can deflect the light emitted by the curved light-emitting area to the normal direction of the flat light-emitting area, thereby reducing the viewing angle when the user observes the display panel from the front, and avoiding the brightness attenuation of red light being greater than that of the filtered light Therefore, when the brightness decay (RGB L-Decay) of the first light-emitting element 1121 and the second light-emitting element 1122 with the viewing angle are inconsistent, the greenish phenomenon of the curved edge of the display panel caused by the larger viewing angle is avoided.
- RGB L-Decay the brightness decay
- the organic light emitting element 112 further includes a third light emitting element 1123, and the third light emitting element 1123 is configured to emit blue light. Therefore, the display panel adopts an RGB arrangement.
- the embodiments of the present disclosure include but are not limited to this.
- FIG. 5 is a schematic structural diagram of another display panel provided according to an embodiment of the present disclosure.
- the display panel may further include a touch structure 150, which is located at least between the curved light-emitting area 122 and the curved portion 132 to implement a touch function on the side edge of the display panel.
- the touch structure 150 can be arranged on the flat light-emitting area 121 and the curved light-emitting area 122 over the entire surface to achieve full touch.
- FIG. 6 is a schematic diagram of a display device provided according to an embodiment of the present disclosure.
- the display device 200 includes the above-mentioned display panel 100, so as to reduce the viewing angle when the user observes the display panel from the front, thereby avoiding the brightness attenuation of the red, green and blue sub-pixels with the viewing angle (RGB L-Decay) When they are not consistent, color shift occurs on the curved edge of the display panel due to the larger viewing angle.
- the display device may be a smart phone.
- the display device may also include functional components such as a camera.
- the embodiments of the present disclosure include but are not limited to this, and the display device may also be a notebook computer, a TV, a tablet computer, a car navigator, an electronic photo album, and other electronic products with display functions.
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Abstract
Description
Claims (13)
- 一种显示面板,包括:显示面板本体,具有一发光面;以及盖板,覆盖所述显示面板本体的发光面,其中,所述发光面包括平坦发光区域和弯曲发光区域,所述盖板包括覆盖所述弯曲发光区域的弯曲部,从所述平坦发光区域到所述弯曲发光区域的方向上,所述弯曲部上各个位置的厚度逐渐减小。
- 根据权利要求1所述的显示面板,其中,所述弯曲部向所述显示面板本体所在的一侧弯曲,所述弯曲部包括:第一表面,位于所述弯曲部远离所述弯曲发光区域的一侧;以及第二表面,位于所述弯曲部靠近所述弯曲发光区域的一侧。
- 根据权利要求2所述的显示面板,其中,所述第一表面包括第一位置,所述第二表面包括第二位置,所述第二位置的法线经过所述第一位置,所述第一位置的法线和所述第二位置的法线的夹角α=acrsin[(n0/n1)*sinβ],其中,n0为空气的折射率,n1为所述盖板的折射率,β的取值范围为30-50度。
- 根据权利要求3所述的显示面板,其中,β的取值范围为40-41度。
- 根据权利要求2-4中任一项所述的显示面板,其中,所述第一表面上各个位置的曲率半径相同,所述第二表面上的各个位置的曲率半径相同,所述第一表面的曲率半径大于所述第二表面的曲率半径。
- 根据权利要求1-5中任一项所述的显示面板,其中,所述显示面板本体包括有机发光元件,所述有机发光元件包括:第一发光元件,被配置为发第一颜色的光;以及第二发光元件,被配置为发第二颜色的光,其中,所述第一发光元件的亮度随视角衰减程度大于所述第二发光元件的亮度随视角衰减程度。
- 根据权利要求1-6中任一项所述的显示面板,其中,所述盖板还包括覆盖所述平坦发光区域的平坦部,所述平坦部上各个位置的厚度相同。
- 根据权利要求7所述的显示面板,其中,所述弯曲部与所述平坦部相接的位置处的厚度与所述平坦部的厚度相同。
- 根据权利要求1-7中任一项所述的显示面板,其中,所述盖板远离所述显示面板本体的表面为连续的表面。
- 根据权利要求1-9中任一项所述的显示面板,还包括:触控结构,至少位于所述弯曲发光区域和所述弯曲部之间以在所述显示面板的侧边缘实现触控功能。
- 根据权利要求1-10中任一项所述的显示面板,其中,所述弯曲发光区域位于所述平坦发光区域周边。
- 根据权利要求11所述的显示面板,其中,所述弯曲发光区域位于所述平坦发光区域的两侧。
- 一种显示装置,包括根据权利要求1-12中任一项所述的显示面板。
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CN201980000741.0A CN110352494A (zh) | 2019-05-27 | 2019-05-27 | 显示面板和显示装置 |
US16/764,553 US11877468B2 (en) | 2019-05-27 | 2019-05-27 | Display panel and display device |
PCT/CN2019/088602 WO2020237469A1 (zh) | 2019-05-27 | 2019-05-27 | 显示面板和显示装置 |
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PCT/CN2019/088602 WO2020237469A1 (zh) | 2019-05-27 | 2019-05-27 | 显示面板和显示装置 |
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CN111508343B (zh) * | 2020-05-29 | 2022-03-18 | 武汉天马微电子有限公司 | 一种显示面板和显示装置 |
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US20210408431A1 (en) | 2021-12-30 |
CN110352494A (zh) | 2019-10-18 |
US11877468B2 (en) | 2024-01-16 |
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