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Control method and device suitable for cathode voltage of OLED display module

A cathode voltage and display module technology, which is applied in the field of OLED display, can solve problems such as interference with the touch function of the display screen, unstable cathode voltage, and changes in the brightness of the display screen.

Active Publication Date: 2019-07-09
EVERDISPLAY OPTRONICS (SHANGHAI) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the prior art, when the display screen of the terminal equipment is displaying images, when the integrated circuit is working, the signal generated on the chip of the integrated circuit will have a coupling effect on the cathode voltage of the OLED display module, making the cathode voltage unstable. , so that when the display screen is displaying images, the brightness of the display screen will change or even interfere with the touch function of the display screen. For example, when the user touches point A of the display screen, point A does not respond but point B responds

Method used

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  • Control method and device suitable for cathode voltage of OLED display module
  • Control method and device suitable for cathode voltage of OLED display module
  • Control method and device suitable for cathode voltage of OLED display module

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Embodiment Construction

[0022] In order to make the purpose, technical solutions and beneficial effects of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0023] figure 1 It shows a schematic structural diagram of an applicable OLED display module provided by the embodiment of the present application, as shown in figure 1 , including an OLED display module. The OLED display module includes a display screen 101 , an OLED device, a driving circuit 103 and a substrate 104 . The cathode of the OLED display module is included in the OLED device 102 . A control device 105 is also provided on the substrate 104 .

[0024] Optionally, the control device 105 can be an integrated circuit, and the control device 105 can be co...

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Abstract

The embodiment of the invention relates to the technical field of OLED display, in particular to a control method and device for cathode voltage of a display screen, and the control method and deviceare used for improving touch kinetic energy of the display screen. In the embodiment of the invention, the deviation degree value is determined according to the target voltage and the acquired cathodevoltage of the OLED display module; wherein the deviation degree value is used for indicating the deviation degree between the cathode voltage and the target voltage; and if the deviation degree value is greater than a threshold value, adjusting the input voltage of the OLED display module according to the cathode voltage and the target voltage. Thus, the cathode voltage, obtained according to the adjusted input voltage of the OLED display module, of the OLED display module can approach the target voltage, the stability of the cathode voltage is improved, and therefore the touch function of the display screen is improved.

Description

technical field [0001] The embodiments of the present application relate to the field of OLED display technology, and in particular to a method and device for controlling cathode voltage of an OLED display module. Background technique [0002] With the continuous development of organic light-emitting diode (Organic Light-Emitting Diode, OLED) display technology, users also pay more and more attention to the display effect of the OLED display screen in use. [0003] In the prior art, when the display screen of the terminal equipment is displaying images, when the integrated circuit is working, the signal generated on the chip of the integrated circuit will have a coupling effect on the cathode voltage of the OLED display module, making the cathode voltage unstable. , so that when the display screen is displaying images, the brightness of the display screen will change or even interfere with the touch function of the display screen. For example, when the user touches point A o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041
CPCG06F3/0416
Inventor 鲁佳浩亢澎涛
Owner EVERDISPLAY OPTRONICS (SHANGHAI) CO LTD
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