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OLED pixel structure as well as preparation method, ultraviolet light detection method and ultraviolet light detection device thereof

A technology of a pixel structure and a light-shielding layer is applied in the field of ultraviolet light detection, which can solve the problems of high preparation cost and complex structure of an array substrate, and achieve the effect of reducing the preparation cost and having a simple structure.

Active Publication Date: 2015-03-04
BOE TECH GRP CO LTD
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Problems solved by technology

[0004] The object of the present invention is to provide OLED pixel structure and its preparation method, ultraviolet light detection method and device, to solve the problems of complex array substrate structure and high preparation cost of existing ultraviolet light detection devices

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  • OLED pixel structure as well as preparation method, ultraviolet light detection method and ultraviolet light detection device thereof
  • OLED pixel structure as well as preparation method, ultraviolet light detection method and ultraviolet light detection device thereof
  • OLED pixel structure as well as preparation method, ultraviolet light detection method and ultraviolet light detection device thereof

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Embodiment Construction

[0044] The implementation process of the embodiment of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0045] see figure 1 , the present invention provides an OLED pixel structure, comprising:

[0046] Base substrate 1; a light-shielding layer 2 and a transparent insulating layer 3 sequentially formed on the base substrate 1, the light-shielding layer 2 has a light-transmitting region 21; a light-sensitive TFT 4 and a switch TFT 5, and the light-sensitive TFT 4 and the switch TFT 5 respectively include A source-drain metal layer, an active layer (such as the active layer 7 of the pho...

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Abstract

The invention discloses an OLED pixel structure as well as a preparation method, an ultraviolet light detection method and an ultraviolet light detection device thereof in order to solve the problems that an array substrate of an existing ultraviolet light detection device is complicated in structure and relatively high in preparation cost. The OLED pixel structure comprises a substrate, a light shielding layer, a transparent insulating layer, a light sensing TFT, a switch TFT, an anode, a pixel definition layer, an organic light emitting layer and a transparent cathode, wherein the light shielding layer and the transparent insulating layer are sequentially formed on the substrate; the light shielding layer comprises a light transmitting region; the light sensing TFT and the switch TFT are formed on the transparent insulating layer; the light sensing TFT is arranged above the light transmitting region; a channel region of the light sensing TFT directly faces to the light transmitting region; the light sensing TFT and the switch TFT comprise source and drain metal layers, active layers, grid insulating layers, grid electrodes and passivation layers formed on the transparent insulating layer in sequence; the source electrode o the light sensing TFT is electrically connected with the drain electrode of the switch TFT; the anode, the pixel definition layer, the organic light emitting layer and the transparent cathode are formed on the passivation layer; the anode is electrically connected with the source electrode of the switch TFT by passing through a through hole.

Description

technical field [0001] The invention relates to the technical field of ultraviolet light detection, in particular to an OLED pixel structure, a preparation method thereof, an ultraviolet light detection method and a device. Background technique [0002] Ultraviolet light has a certain degree of damage to human skin. Strong ultraviolet light can cause skin burns, and prolonged exposure to strong ultraviolet light may even cause skin lesions. For example, direct exposure to sunlight, in a plateau environment, in a medical work environment with ultraviolet light, or in a production environment with ultraviolet light may damage human skin. In order to determine whether there is strong ultraviolet light in the environment and judge the intensity of ultraviolet light, organic light emitting diode (Organic Light Emitting Diode, OLED) display technology and detection technology are combined in the prior art to realize the function of real-time display and detection of environmental ...

Claims

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Application Information

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IPC IPC(8): H01L27/32
Inventor 陈立强
Owner BOE TECH GRP CO LTD
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