利索-全球专利检索

  1. 登录
  2. 注册
发明授权
CN105845068B 一种源极驱动模块的供电电路、显示面板和显示装置 有权

一种源极驱动模块的供电电路、显示面板和显示装置
摘要：
本发明公开了一种源极驱动模块的供电电路、显示面板和显示装置，用以避免供电电路中由于供电电压过大或者过小而造成的源极驱动模块的烧毁等不良现象。所述供电电路包括：第一电压比较模块、第二电压比较模块和开关控制模块；第一电压比较模块用于对模拟电压信号与模拟电压的参考电压的大小进行比较，当确定模拟电压信号大于或等于模拟电压的参考电压时，输出第一信号给开关控制模块；第二电压比较模块用于对数字电压信号与数字电压的参考电压的大小进行比较，当确定数字电压信号小于或等于所述数字电压的参考电压时，输出第三信号给开关控制模块；开关控制模块用于当接收到第一信号或第三信号时，停止输出模拟电压信号。
摘要（英）：

The invention discloses a source electrode driving module power supply circuit, a display panel and a display device, and aims at avoiding the adverse phenomena of burnout of a source electrode driving module due to oversized or undersized power supply voltage of the power supply circuit. The power supply circuit comprises a first voltage comparison module, a second voltage comparison module and a switch control module. The first voltage comparison module is used for comparing the size of an analog voltage signal and reference voltage of analog voltage. When the analog voltage signal is determined to be greater than or equal to the reference voltage of the analog voltage, a first signal is outputted to the switch control module. The second voltage comparison module is used for comparing the size of a digital voltage signal and reference voltage of digital voltage. When the digital voltage signal is determined to be less than or equal to the reference voltage of the digital voltage, a third signal is outputted to the switch control module. The switch control module is used for stopping outputting of the analog voltage signal when the switch control module receives the first signal or the third signal.

公开/授权文献
0/0