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OLED display device and brightness adjusting method thereof

A display device and brightness adjustment technology, which is applied to static indicators, cathode ray tube indicators, instruments, etc., can solve problems such as the inability to design threshold voltage compensation circuits, poor display effects, and threshold voltage drift

Inactive Publication Date: 2017-06-23
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] With the development of OLED display devices to high PPI (Pixels Per Inch, pixel density), limited by the space constraints of sub-pixels, only the simplest 2T1C pixel circuit can be designed to drive OLED, and the threshold voltage compensation circuit cannot be designed. Therefore, , will lead to threshold voltage drift, which will lead to uneven brightness of OLED display and poor display effect

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  • OLED display device and brightness adjusting method thereof
  • OLED display device and brightness adjusting method thereof
  • OLED display device and brightness adjusting method thereof

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Embodiment Construction

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0038] An embodiment of the present invention provides an OLED display device, such as Figure 1-Figure 7 As shown, it includes a substrate 10, an OLED display element 20 disposed on a display area on the substrate, a photosensitive device 30 and a control module (not shown in the figure) electrically connected to the photosensitive device 30. The control module is used to control The OLED display element 20 emits light, and performs brightness compensation on...

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Abstract

Embodiments of the present invention provide an OLED display device and a brightness adjusting method thereof, and relate to the display technical field. According to the technical scheme of the invention, the display brightness uniformity of the OLED display device can be improved. The OLED display device comprises a substrate, an OLED display element disposed on the display area of the substrate, a light sensing device, and a control module electrically connected with the light sensing device. The control module is used for controlling the light emitting process of the OLED display element, and compensating the brightness of the OLED display element according to the light brightness of the OLED display element detected by the light sensing device.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an OLED display device and a brightness adjustment method thereof. Background technique [0002] OLED (Organic Light Emitting Diode, Organic Light Emitting Diode) is a current-driven device, which is widely used in the display field because of its advantages of self-luminescence, fast response, wide viewing angle, and being able to be fabricated on a flexible substrate. [0003] For an actively driven OLED display device, each sub-pixel includes not only an OLED, but also an OLED pixel circuit. [0004] With the development of OLED display devices to high PPI (Pixels Per Inch, pixel density), limited by the space constraints of sub-pixels, only the simplest 2T1C pixel circuit can be designed to drive OLED, and the threshold voltage compensation circuit cannot be designed. Therefore, , will lead to threshold voltage drift, which will lead to uneven brightness of OLED display and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/325G09G5/02H01L27/32
CPCG09G3/3225G09G5/02H10K59/13G09G3/3208G09G2320/0693G09G2360/147G09G2320/0233H10K59/60H10K2102/3031H10K2102/3026G09G3/3258G09G2360/145G09G2360/141G09G2320/0646H10K50/84H10K59/123H10K59/131H10K59/1213
Inventor 刘冬妮方正陈小川杨盛际付杰岳晗肖丽王磊卢鹏程
Owner BOE TECH GRP CO LTD