WO2015143815A1 - 有机发光二极管显示像素、显示面板及显示装置 - Google Patents

有机发光二极管显示像素、显示面板及显示装置 Download PDF

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WO2015143815A1
WO2015143815A1 PCT/CN2014/083915 CN2014083915W WO2015143815A1 WO 2015143815 A1 WO2015143815 A1 WO 2015143815A1 CN 2014083915 W CN2014083915 W CN 2014083915W WO 2015143815 A1 WO2015143815 A1 WO 2015143815A1
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Prior art keywords
emitting device
light
pixel
blue light
light emitting
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PCT/CN2014/083915
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English (en)
French (fr)
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孙拓
刘颖
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京东方科技集团股份有限公司
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Priority to EP14859298.3A priority Critical patent/EP3125327B1/en
Priority to US14/436,381 priority patent/US9780149B2/en
Publication of WO2015143815A1 publication Critical patent/WO2015143815A1/zh

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    • 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
    • H10K59/352—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels the areas of the RGB subpixels being different
    • 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
    • H10K59/353—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels characterised by the geometrical arrangement of the RGB subpixels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G1/00—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data
    • 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

Definitions

  • Organic light emitting diode display pixel, display panel and display device Organic light emitting diode display pixel, display panel and display device
  • Embodiments of the present invention relate to an organic light emitting diode display pixel, a display panel, and a display device. Background technique
  • OLED Organic Light-Emitting Diode
  • OLED for short display has thin, light, wide viewing angle, active illumination, continuously adjustable color, low cost, fast response, low power consumption, low driving voltage, The wide operating temperature range, simple production process, high luminous efficiency and flexible display have been listed as promising next-generation display technologies.
  • the basic structure of the OLED may include an anode, a cathode, and an organic light-emitting layer between the anode and the cathode; the organic light-emitting layer is driven by an applied electric field, and the phenomenon of light emission is caused by carrier injection and recombination of the anode and the cathode. Specifically, electrons and holes as carriers are injected and migrated from the cathode and the anode to the organic light-emitting layer under the action of an electric field, and are combined to form excitons in the organic light-emitting layer, and the excitons attenuate and release energy, and are released. The energy excites the luminescent molecules of the organic luminescent layer, and the excited luminescent molecules emit visible light through radiation relaxation.
  • OLEDs can be classified into passively driven OLEDs (PMOLEDs) and actively driven OLEDs (AMOLEDs) depending on the driving method.
  • the PMOLED is formed into a matrix by a cathode and an anode, and illuminates the pixels in the array in a scanning manner. Each pixel is operated in a short pulse mode, and is an instant high-brightness illumination.
  • the structure is simple, and the manufacturing cost can be effectively reduced, but the driving thereof is driven.
  • the voltage is high and is not suitable for use in large-size, high-resolution display panels.
  • AMOLED uses a separate Thin Film Transistor (TFT) to control each pixel. Each pixel can continuously and independently drive illumination.
  • TFT Thin Film Transistor
  • At least one embodiment of the present invention provides an organic light emitting diode display pixel, a display panel, and a display device, which can improve the service life of the display panel without reducing the total aperture ratio of the pixel.
  • At least one embodiment of the present invention provides an organic light emitting diode display pixel including a red light emitting device, a green light emitting device, and a blue light emitting device arranged in parallel and inclined with respect to an edge of a pixel, wherein: the red light emitting device and the green light emitting device The device is located on both sides of the blue light emitting device, and the length of the blue light emitting device is greater than the lengths of the red light emitting device and the green light emitting device, respectively.
  • At least one embodiment of the present invention also provides an organic light emitting diode display panel comprising a plurality of display pixels arranged as described above in an array, wherein the overall life of the display panel is prolonged due to a decrease in the decay speed of the blue light emitting device.
  • At least one embodiment of the present invention also provides an organic light emitting diode display device. Since the display panel has a long service life, the display device has a long service life.
  • 1 is a schematic top plan view of an OLED display pixel
  • FIG. 2 is a schematic top plan view of an OLED display pixel according to a first embodiment of the present invention
  • FIG. 3 is a schematic top plan view of an OLED display pixel according to a second embodiment of the present invention.
  • FIG. 4 is a top plan view showing a OLED display pixel according to a third embodiment of the present invention.
  • An AMOLED display panel includes a plurality of pixels arranged in an array. As shown in FIG. 1, each pixel 100 includes a red light-emitting device 1 (corresponding to a red sub-pixel) having the same shape and parallel arrangement, and a green light-emitting device 2 (corresponding to green) Sub-pixel) and blue light-emitting device 3 (corresponding to blue sub-pixel), red illuminator
  • the aperture area ratio of the device 1, the green light-emitting device 2, and the blue light-emitting device 3 is 1:1:1.
  • the AMOLED display panel shown in FIG. 1 has a drawback in that the red light-emitting device 1, the green light-emitting device 2, and the blue light-emitting device 3 have different decay speeds, wherein the blue light-emitting device 3 has the fastest decay and the lowest lifetime, which seriously affects By the life of the display panel, the display panel will have a severe color shift as the usage time increases. If the aperture ratios of the red light-emitting device 1, the green light-emitting device 2, and the blue light-emitting device 3 are adjusted, the total aperture ratio of the pixel is lowered.
  • At least one embodiment of the present invention provides an organic light emitting diode (hereinafter referred to as OLED) display pixel, a display panel, and a display device.
  • OLED organic light emitting diode
  • the red light emitting device, the green light emitting device, and the blue light emitting device are obliquely disposed with respect to a side of the pixel, and the blue light emitting device is located between the red light emitting device and the green light emitting device and has the longest length, in each color light emitting device, or the like.
  • the blue light-emitting device of the pixel structure has larger opening areas than the red light-emitting device and the green light-emitting device, and the current density of the blue light-emitting device is small, so that the blue light-emitting device can be reduced without lowering the total aperture ratio of the pixel.
  • the decay speed of the blue light emitting device improves the life of the display panel.
  • the OLED display pixel 100 includes a red light emitting device 10, a green light emitting device 20, and a blue light emitting device 30 which are arranged in parallel and are inclined with respect to the sides of the pixel 100.
  • the red light emitting device 10 and the green light emitting device 20 are located on both sides of the blue light emitting device 30, and the length of the blue light emitting device 30 is greater than the lengths of the red light emitting device 10 and the green light emitting device 20, respectively.
  • the side of the pixel 100 is, for example, parallel to the side of the display panel having the pixel.
  • the red light-emitting device 10, the green light-emitting device 20, and the blue light-emitting device 30 have the same width, and the length can be specifically designed according to the ratio of openings required.
  • the angles of inclination of the sides of the red light-emitting device 10, the green light-emitting device 20, and the blue light-emitting device 30 with respect to the pixel 100 are not limited, and may be, for example, 45 degrees, 60 degrees, or the like.
  • the pixel structure shown in Figures 2 and 3 is mirror symmetrical. In the embodiment shown in Figs. 2 and 3, the angles of the red light-emitting device 10, the green light-emitting device 20, and the blue light-emitting device 30 and the lateral sides of the pixel 100 are both 45 degrees. As shown in Fig. 4, in this embodiment, the angles of the red light-emitting device 10, the green light-emitting device 20, and the blue light-emitting device 30 and the lateral sides of the pixel 100 are both 60 degrees.
  • the lengths of the red, green, and blue light emitting devices 10, 30, and the blue light emitting device 30 satisfy the following relationship:
  • the length of the red light emitting device 10 is the length of the green light emitting device 20, which is the length of the blue light emitting device 30, and A is a set error value.
  • the value of ⁇ can be determined according to the specific structural size of the pixel in combination with industry experience.
  • the pixel structure can significantly increase the blue light emitting device.
  • the ratio of the aperture area of the red light-emitting device 10 and the green light-emitting device 20 is smaller, and the current density of the blue light-emitting device 30 is smaller, and the decay rate is more pronounced.
  • the red light-emitting device 10 and the green light-emitting device 20 are symmetrically distributed on both sides of the blue light-emitting device 30 and have the same length. This design simplifies the evaporation process of the light-emitting device and enables the display panel to have a better display effect.
  • the pixel 100 is square, the blue light emitting device 30 is located on a diagonal of the square, and both ends of the red light emitting device 10, the green light emitting device 20, and the blue light emitting device 30 extend to the boundary of the pixel 100.
  • the design can increase the opening area of the red light emitting device 10, the green light emitting device 20 and the blue light emitting device 30 to a greater extent, thereby increasing the total aperture ratio of the pixel, improving the display quality of the display panel and reducing the power consumption.
  • One of the adjacent pixels 100 is a structure obtained by centrally symmetrically transforming another pixel (the red light emitting device 10 of the first pixel and the green light emitting device 20 of the second pixel are located in the same pixel structure) Position, the green light-emitting device 20 of the first pixel and the red light-emitting device 10 of the second pixel are located at the same position of the pixel structure, that is, the second pixel is a structure obtained by performing a central symmetric transformation of the first pixel by 180°.
  • two red light emitting devices 10 or two green light emitting devices 20 located between the two blue light emitting devices 30 are located in the same diagonal direction.
  • the light-emitting devices arranged in the same oblique direction have the same color, which can further simplify the evaporation process of the light-emitting device and save equipment cost.
  • the red light emitting device 10, the green light emitting device 20, and the blue light emitting device 30 are disposed obliquely with respect to the side of the pixel 100, and the blue light emitting device 30 is located between the red light emitting device 10 and the green light emitting device 20 and has a length The longest, under the wide condition of each color light-emitting device, the blue light-emitting device 30 of the pixel structure is larger than the opening areas of the red light-emitting device 10 and the green light-emitting device 20, and the current density of the blue light-emitting device 30 is small, therefore, The decay speed of the blue light emitting device 30 can be reduced without increasing the total aperture ratio of the pixel, and the service life of the display panel can be improved.
  • the angles of the red light-emitting device 10, the green light-emitting device 20, and the blue light-emitting device 30 and the lateral sides of the pixel 100 are both 45 degrees, and the widths of the light-emitting devices of the respective colors are set to be equal, and the pixels are
  • the side length of 100 is 130.5 ⁇ m
  • the lateral spacing of adjacent light-emitting devices is 26 ⁇ m
  • B R2 , B G2 , 2 are the widths of red light-emitting device 10, green light-emitting device 20, and blue light-emitting device 30, respectively
  • L R2 , L G2 The lengths of the red light emitting device 10, the green light emitting device 20, and the blue light emitting device 30, respectively
  • L PP1 ⁇ PP 2 are respectively shown in the figure
  • Ar R , Ar G respectively, the red light emitting device 10, the green light emitting device 20, and the blue
  • the opening area of the light emitting device 30; ⁇ is the
  • the embodiment of the present invention can reduce the decay speed of the blue light emitting device and improve the service life of the display panel without reducing the total aperture ratio of the pixel.
  • At least one embodiment of the present invention further provides an organic light emitting diode display panel comprising a plurality of display pixels arranged in an array according to any one of the foregoing aspects, wherein the overall use of the display panel is reduced due to a decrease in the decay speed of the blue light emitting device. Life is extended.
  • the specific type of the OLED display panel is not limited, and may be, for example, a PMOLED display panel or an AMOLED display panel.
  • At least one embodiment of the present invention also provides an organic light emitting diode display device. Since the display panel has a long service life, the display device has a long service life.
  • the specific type of display device is not limited, and may be, for example, an OLED display, an OLED television, or the like.

Abstract

一种有机发光二极管显示像素（100）、显示面板及显示装置，有机发光二极管显示像素（100）包括平行排列且相对像素的边倾斜设置的红发光器件（10）、绿发光器件（20）和蓝发光器件（30）。红发光器件（10）和绿发光器件（20）位于蓝发光器件（30）的两侧，蓝发光器件（30）的长度分别大于红发光器件（10）和绿发光器件（20）的长度。显示像素（100）可以在不降低像素总开口率的前提下提高显示面板的使用寿命。

Description

有机发光二极管显示像素、 显示面板及显示装置 技术领域
本发明的实施例涉及一种有机发光二极管显示像素、 显示面板及显示装 置。 背景技术
OLED ( Organic Light-Emitting Diode, 有机发光二极管， 简称 OLED ) 显示屏由于具有薄、 轻、 宽视角、 主动发光、 发光颜色连续可调、 成本低、 响应速度快、 能耗小、 驱动电压低、 工作温度范围宽、 生产工艺简单、 发光 效率高及可柔性显示等优点， 已被列为极具发展前景的下一代显示技术。
OLED的基本结构可包括阳极、 阴极以及位于阳极和阴极之间的有机发 光层； 有机发光层在外加电场的驱动下， 通过阳极和阴极的载流子注入和复 合导致发光的现象。 具体地， 作为载流子的电子和空穴在电场的作用下分别 从阴极和阳极注入并迁移到有机发光层， 并在有机发光层中相遇复合形成激 子， 激子衰减放出能量， 释放的能量使有机发光层的发光分子激发， 激发后 的发光分子经过辐射弛豫而发出可见光。
OLED依据驱动方式的不同， 可分为无源驱动的 OLED ( PMOLED )与 有源驱动的 OLED ( AMOLED ) 两种。 PMOLED以阴极、 阳极构成矩阵状， 以扫描方式点亮阵列中的像素， 每个像素都是操作在短脉冲模式下， 为瞬间 高亮度发光， 其结构简单， 可以有效降低制造成本， 但其驱动电压较高， 不 适合应用在大尺寸、 高分辨率的显示面板中。 AMOLED 则是釆用独立的薄 膜晶体管（Thin Film Transistor, 简称 TFT )去控制每个像素， 每个像素皆可 以连续且独立的驱动发光， AMOLED 的驱动电压较低， 寿命较长， 可应用 于大尺寸平板显示， 但其制作工艺较为复杂， 成本相对较高。 发明内容
本发明至少一实施例提供了一种有机发光二极管显示像素、 显示面板及 显示装置， 在不降低像素总开口率的前提下提高显示面板的使用寿命。 本发明至少一实施例提供一种有机发光二极管显示像素， 包括平行排列 且相对像素的边倾斜设置的红发光器件、 绿发光器件和蓝发光器件， 其中： 所述红发光器件和所述绿发光器件位于所述蓝发光器件的两侧， 所述蓝发光 器件的长度分别大于所述红发光器件和所述绿发光器件的长度。
本发明至少一实施例还提供了一种有机发光二极管显示面板， 包括阵列 排布的多个如上所述的显示像素， 由于蓝发光器件的衰退速度降低， 显示面 板的整体使用寿命得以延长。
本发明至少一实施例还提供了一种有机发光二极管显示装置， 由于显示 面板的使用寿命较长， 显示装置的使用寿命也较长。 附图说明
为了更清楚地说明本发明实施例的技术方案， 下面将对实施例的附图作 简单地介绍，显而易见地，下面描述中的附图仅仅涉及本发明的一些实施例， 而非对本发明的限制。
图 1为一种 OLED显示像素的俯视结构示意图；
图 2为本发明第一实施例 OLED显示像素的俯视结构示意图；
图 3为本发明第二实施例 OLED显示像素的俯视结构示意图；
图 4为本发明第三实施例 OLED显示像素的俯视结构示意图。
主要附图标记：
100-像素； 10-红发光器件； 20-绿发光器件； 30-蓝发光器件。 具体实施方式
为使本发明实施例的目的、 技术方案和优点更加清楚， 下面将结合本发 明实施例的附图， 对本发明实施例的技术方案进行清楚、 完整地描述。显然， 所描述的实施例是本发明的一部分实施例， 而不是全部的实施例。 基于所描 述的本发明的实施例， 本领域普通技术人员在无需创造性劳动的前提下所获 得的所有其他实施例， 都属于本发明保护的范围。
一种 AMOLED显示面板包括阵列排布的多个像素， 如图 1所示， 每个 像素 100包括形状尺寸相同且平行设置的红发光器件 1 (对应红子像素） 、 绿发光器件 2 (对应绿子像素）和蓝发光器件 3 (对应蓝子像素）， 红发光器 件 1、 绿发光器件 2和蓝发光器件 3的开口面积比为 1: 1: 1。
如图 1所示的 AMOLED显示面板存在的缺陷在于， 红发光器件 1、 绿 发光器件 2和蓝发光器件 3的衰退速度不尽相同， 其中蓝发光器件 3衰退最 快， 寿命最低， 这严重影响到显示面板的使用寿命， 显示面板会随着使用时 间的增加出现严重的色偏现象。 如果调整红发光器件 1、 绿发光器件 2和蓝 发光器件 3的开口比例， 则又会造成像素总开口率的降低。
为了在不降低像素总开口率的前提下提高显示面板的使用寿命， 本发明 至少一实施例提供了一种有机发光二极管 （以下简称 OLED )显示像素、 显 示面板及显示装置。
在本发明的实施例中， 红发光器件、 绿发光器件和蓝发光器件相对像素 的边倾斜设置， 蓝发光器件位于红发光器件和绿发光器件之间且长度最长， 在各颜色发光器件等宽条件下， 该像素结构的蓝发光器件比红发光器件和绿 发光器件的开口面积都要大， 蓝发光器件的电流密度较小， 因此， 可以在不 降低像素总开口率的前提下， 降低蓝发光器件的衰退速度， 提高显示面板的 使用寿命。
如图 2所示， 本发明第一实施例提供的 OLED显示像素 100， 包括平行 排列且相对像素 100的边倾斜设置的红发光器件 10、 绿发光器件 20和蓝发 光器件 30。 红发光器件 10和绿发光器件 20位于蓝发光器件 30的两侧， 蓝 发光器件 30的长度分别大于红发光器件 10和绿发光器件 20的长度。 像素 100的边例如与具有该像素的显示面板的侧边平行。
红发光器件 10、 绿发光器件 20和蓝发光器件 30的宽度相等， 长度可根 据需要达到的开口比例进行具体设计。 红发光器件 10、 绿发光器件 20和蓝 发光器件 30相对像素 100的边的倾斜角度不限， 例如可以为 45度， 60度等 等。 图 2和图 3所示的像素结构呈镜像对称。 图 2和图 3所示实施例中， 红 发光器件 10、绿发光器件 20和蓝发光器件 30与像素 100的横边的夹角均为 45度。 如图 4所示， 在该实施例中， 红发光器件 10、 绿发光器件 20和蓝发 光器件 30与像素 100的横边的夹角均为 60度。
在本发明的至少一实施例中， 所述红发光器件 10、 绿发光器件 20和蓝 发光器件 30的长度满足以下关系式：
\ ^R + ^G ~ ^B 其中， 为红发光器件 10的长度， 为绿发光器件 20的长度， 为蓝 发光器件 30的长度， A为设定的误差值。
^的取值可根据像素的具体结构尺寸结合行业经验确定， 当红发光器件 10与绿发光器件 20的长度之和等于或约等于蓝发光器件 30的长度时，像素 结构可以明显增大蓝发光器件 30与红发光器件 10以及绿发光器件 20的开口 面积比， 蓝发光器件 30的电流密度更小， 其衰退速度降低更加明显。
如图 2所示，红发光器件 10和绿发光器件 20对称分布于蓝发光器件 30 的两侧且长度相等。 该设计可以简化发光器件的蒸镀工艺， 并且能够使显示 面板具有较好的显示效果。 进一步，像素 100呈正方形， 蓝发光器件 30位于 正方形的对角线上， 红发光器件 10、 绿发光器件 20和蓝发光器件 30的两端 延伸至像素 100的边界。 该设计可以更大限度的提高红发光器件 10、 绿发光 器件 20和蓝发光器件 30的开口面积， 从而提高像素总开口率， 提升显示面 板的显示品质并降低能耗。 相邻两个像素 100中， 其中一个像素为将另一个 像素进行中心对称变换后所得到的结构（第一个像素的红发光器件 10与第二 个像素的绿发光器件 20位于像素结构的同一位置，第一个像素的绿发光器件 20与第二个像素的红发光器件 10位于像素结构的同一位置， 即第二个像素 为将第一个像素进行 180° 的中心对称变换后得到的结构） ， 且位于两个蓝 发光器件 30之间的两个红发光器件 10或两个绿发光器件 20位于同一斜线方 向上。 这样， 呈阵列排布的多个像素中， 沿同一斜线方向排列的发光器件颜 色相同， 可以进一步简化发光器件的蒸镀工艺， 节约设备成本。
在本发明的至少一实施例中， 红发光器件 10、 绿发光器件 20和蓝发光 器件 30相对像素 100的边倾斜设置，蓝发光器件 30位于红发光器件 10和绿 发光器件 20之间且长度最长，在各颜色发光器件等宽条件下，该像素结构的 蓝发光器件 30比红发光器件 10和绿发光器件 20的开口面积都要大，蓝发光 器件 30的电流密度较小， 因此， 可以在不降低像素总开口率的前提下， 降低 蓝发光器件 30的衰退速度， 提高显示面板的使用寿命。
以图 2所示的实施例为例， 红发光器件 10、 绿发光器件 20和蓝发光器 件 30与像素 100的横边的夹角均为 45度，设定各颜色发光器件的宽度相等， 像素 100的边长为 130.5μπι，相邻发光器件的横向间距为 26μπι，设 BR2、 BG2、 2分别为红发光器件 10、绿发光器件 20和蓝发光器件 30的宽度； LR2、 LG2、 分别为红发光器件 10、 绿发光器件 20和蓝发光器件 30的长度； LPP1^ PP2分别如图中所示； ArR, ArG ， 分别为红发光器件 10、 绿发光器件 20和蓝发光器件 30的开口面积； ^^为像素的总开口面积； Ar为像素的总 开口率， 贝' J:
BR2 =BG2 =BB2 =-x(-xl30.5x V2 -26x2) = 20.1318um
(式 1 LB2 = V2xl30.5-¾2
Figure imgf000007_0001
-20.1318 = 164.3952um (式 2 LR2 =LG2 = 2Lm =2x(^xl30.5-26-1.5¾2) = 72.1319um
(式 3
LPP2 =^ BR2 = ^-x 20.1318 = 10.0659um
(式 4 根据 OLED制作工艺的限制条件 5画 ， 则有：
LR2max = LG2max == 7 "2.131ΐ9^ + (1ι0υ..0υ6ο5:^9 - 5) == 7 /7".20u1i44画um (式 5
ArB： ArR： ArG = (LB2 xBB2)： (L;BR2)： (JG2 >< 2) = 1： 0.47： 0.47 (式 6 BRi x = 20.1318 x (77.2014 x 2 + 164.3952) = 6417.9776um2 (式，
A = 6417.9776 = 376858%
130.52 (式 8 而在图 1所示的显示像素结构中，
ArB':ArR':ArG' = l:lA (式 9
SRGB ' = (130.5 - 26 X 3) X (130.5 - 5 X 2) = 6326.25um2 (式 ^
6326.25
Ar' = = 37.1471%
130.52 (式 11 ) 对比式（6)和式（9) 可以看出， 图 2 所示像素结构的蓝发光器件 30 与红发光器件 10和绿发光器件 20的开口面积之比明显大于图 1所示的像素 结构的蓝发光器件 3与红发光器件 1和绿发光器件 2的开口面积之比。此外， 对比式（8)和式（11)可以看出， 图 2所示像素结构的像素总开口率相比图 1 所示的像素结构并没有降低， 反而有所提高。 因此， 本发明实施例相比于 图 1所示的像素结构， 可以在不降低像素总开口率的前提下， 降低蓝发光器 件的衰退速度， 提高显示面板的使用寿命。 本发明至少一实施例还提供了一种有机发光二极管显示面板， 包括阵列 排布的多个如前述任一技术方案所述的显示像素， 由于蓝发光器件的衰退速 度降低， 显示面板的整体使用寿命得以延长。 OLED显示面板的具体类型不 限， 例如可以为 PMOLED显示面板， 也可以为 AMOLED显示面板。
本发明至少一实施例还提供了一种有机发光二极管显示装置， 由于显示 面板的使用寿命较长， 显示装置的使用寿命也较长。 显示装置的具体类型不 限， 例如可以为 OLED显示器、 OLED电视等。
以上所述仅是本发明的示范性实施方式， 而非用于限制本发明的保护范 围， 本发明的保护范围由所附的权利要求确定。
本申请要求于 2014年 3月 25日递交的中国专利申请第 201410115315.0 号的优先权， 在此全文引用上述中国专利申请公开的内容以作为本申请的一 部分。

Claims

权利要求书
1、一种有机发光二极管显示像素， 包括平行排列且相对像素的边倾斜设 置的红发光器件、 绿发光器件和蓝发光器件， 其中：
所述红发光器件和所述绿发光器件位于所述蓝发光器件的两侧， 所述蓝 发光器件的长度分别大于所述红发光器件和所述绿发光器件的长度。
2、如权利要求 1所述的有机发光二极管显示像素， 其中， 所述红发光器 件、 绿发光器件和蓝发光器件的长度满足以下关系式： 其中， 为红发光器件的长度， 为绿发光器件的长度， ^为蓝发光器 件的长度， A为设定的误差值。
3、如权利要求 1或 2所述的有机发光二极管显示像素， 其中， 所述红发 光器件和所述绿发光器件对称分布于所述蓝发光器件的两侧且长度相等。
4、 如权利要求 1~3任一项所述的有机发光二极管显示像素， 其中， 所 述像素呈正方形， 所述蓝发光器件位于所述正方形的对角线上， 所述红发光 器件、 绿发光器件和蓝发光器件的两端延伸至像素的边界。
5、如权利要求 4所述的有机发光二极管显示像素， 其中，相邻两个像素 中， 其中一个像素为另一个像素进行中心对称变换所得到的结构， 且位于两 个蓝发光器件之间的两个红发光器件或两个绿发光器件位于同一斜线方向 上。
6、 一种有机发光二极管显示面板， 包括阵列排布的多个如权利要求 1~5 任一项所述的显示像素。
7、一种有机发光二极管显示装置， 包括如权利要求 6所述的有机发光二 极管显示面板。
PCT/CN2014/083915 2014-03-25 2014-08-07 有机发光二极管显示像素、显示面板及显示装置 WO2015143815A1 (zh)

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