Stylus, touch panel, display device and touch sensing method

A stylus, comprising:

• a first emitting electrode;
• a second emitting electrode, wherein a distance between the first emitting electrode and the second emitting electrode in an extension direction of the stylus is greater than zero;
• and
• an emitting circuit, which is connected to the first emitting electrode and the second emitting electrode, respectively, wherein the emitting circuit is used to emit a first electrical signal through the first emitting electrode and to emit a second electrical signal through the second emitting electrode, so that a touch panel determines a tilt angle of the stylus relative to the touch panel according to the first electrical signal and the second electrical signal which are received by the touch panel;
• and
• the stylus further comprises:
• a receiving electrode;
• and
• a detecting circuit, which is connected to the receiving electrode, wherein the detecting circuit is used to detect a frequency of a touch scanning signal of the touch panel through the receiving electrode;
• wherein the detecting circuit is further connected to the emitting circuit, and the emitting circuit is further used to generate the first electrical signal according to the frequency of the touch scanning signal, so that a frequency of the first electrical signal is n times greater than the frequency of the touch scanning signal, n being a positive integer;
• and
• wherein the stylus further comprises a housing;
• the housing comprises a tip through hole at a tip of the stylus;
• the receiving electrode comprises a conductor rod with one end protruding from the tip through hole;
• and each of the first emitting electrode and the second emitting electrode comprises a conductor piece fitting an outer surface of the housing.