A light-sensitive type touch panel, comprising: a support substrate; a first thin film, on the support substrate; a second thin film, which is on the support substrate, opposite to the first thin film in a direction perpendicular to the support substrate, and provided with a first surface and a second surface, wherein the first surface is closer to the first thin film than the second surface, and the second surface faces away from the first thin film; a fluid layer, which is between the first thin film and the second thin film in the direction perpendicular to the support substrate, and adjacent to the first surface of the second thin film, wherein a refractive index of the fluid layer is smaller than a refractive index of the second thin film; a light source, configured to emit incident light which is incident to the second thin film; and a light sensor which is on a side, away from the second thin film, of the first thin film, wherein in the direction perpendicular to the support substrate, the light sensor is between the support substrate and the first thin film; the light-sensitive type touch panel further comprises: a covering layer covering the second thin film, wherein a refractive index of the covering layer is smaller than the refractive index of the second thin film; the light source is configured to enable an incident angle for the incident light to be incident to the second surface to be greater than or equal to a critical angle for the incident light to be totally reflected on the second surface; in a case that a preset position of the second thin film is not applied with a pressure, the incident light falls on the second surface at a first angle (θ1) with respect to the second surface after the incident light is incident to the second thin film; and in a case that the preset position of the second thin film is applied with the pressure, a second angle (θ2) is formed between a part of the incident light and the second surface, and a difference between the second angle (θ2) and the first angle (θ1) is greater than or equal to 1° and smaller than or equal to 2°. a support substrate; a first thin film, on the support substrate; a second thin film, which is on the support substrate, opposite to the first thin film in a direction perpendicular to the support substrate, and provided with a first surface and a second surface, wherein the first surface is closer to the first thin film than the second surface, and the second surface faces away from the first thin film; a fluid layer, which is between the first thin film and the second thin film in the direction perpendicular to the support substrate, and adjacent to the first surface of the second thin film, wherein a refractive index of the fluid layer is smaller than a refractive index of the second thin film; a light source, configured to emit incident light which is incident to the second thin film; and a light sensor which is on a side, away from the second thin film, of the first thin film, wherein in the direction perpendicular to the support substrate, the light sensor is between the support substrate and the first thin film; the light-sensitive type touch panel further comprises: a covering layer covering the second thin film, wherein a refractive index of the covering layer is smaller than the refractive index of the second thin film; the light source is configured to enable an incident angle for the incident light to be incident to the second surface to be greater than or equal to a critical angle for the incident light to be totally reflected on the second surface; in a case that a preset position of the second thin film is not applied with a pressure, the incident light falls on the second surface at a first angle (θ1) with respect to the second surface after the incident light is incident to the second thin film; and in a case that the preset position of the second thin film is applied with the pressure, a second angle (θ2) is formed between a part of the incident light and the second surface, and a difference between the second angle (θ2) and the first angle (θ1) is greater than or equal to 1° and smaller than or equal to 2°. a covering layer covering the second thin film, wherein a refractive index of the covering layer is smaller than the refractive index of the second thin film; the light source is configured to enable an incident angle for the incident light to be incident to the second surface to be greater than or equal to a critical angle for the incident light to be totally reflected on the second surface; in a case that a preset position of the second thin film is not applied with a pressure, the incident light falls on the second surface at a first angle (θ1) with respect to the second surface after the incident light is incident to the second thin film; and in a case that the preset position of the second thin film is applied with the pressure, a second angle (θ2) is formed between a part of the incident light and the second surface, and a difference between the second angle (θ2) and the first angle (θ1) is greater than or equal to 1° and smaller than or equal to 2°.