Touch screen and touch display panel

Abstract

The invention belongs to the technical field of display and particularly relates to a touch screen and a touch display panel. The touch screen comprises a substrate and a sensor located above the substrate and further comprises a one-way light transmitting film, wherein the one-way light transmitting film is arranged between the substrate and the sensor or is arranged on the side, away from the sensor, of the substrate, so that the light from the side, close to the sensor, of the one-way light transmitting film is totally reflected, and the light is transmitted from the side, deviating from the sensor, of the one-way light transmitting film. The touch screen can decrease unstable factors in an existing OGS shadow-eliminating production process by adding one layer of one-way light transmitting film material, and the shadow-eliminating effect of invisible touch electrode patterns of an OG S sensor is achieved, or the light transmitting rate of the touch screen is ensured by further increasing one antireflection layer, the touch screen is simple in film layer structure, a preparation process is stable.

Description

Technical field [0001] The invention belongs to the field of display technology, and specifically relates to a touch screen and a touch display panel. Background technique [0002] OGS (One Glass Solution) touch screen is an electronic product protection screen that directly forms a conductive film and a sensor on the substrate glass. The substrate glass also plays a dual role of protecting the glass and the sensor. At present, in the production process of OGS, in order to achieve a better appearance effect, an anti-imaging layer is added to achieve the visual effect that the touch electrode pattern of the sensor is invisible. [0003] At present, the commonly used de-imaging method is Index Match ITO, which means that a transition film is coated on the sensor. Through the principle of light interference, the reflectivity of the conductive film layer and the non-conductive film layer is close , To achieve the effect that the human eye cannot distinguish. The basic plan includes: ...

AI Technical Summary

Problems solved by technology

The basic schemes include: One scheme is to use two layers of different refractive index layer structures on the bottom layer of the substrate glass to achieve a small color difference between the sensor and the sensor, and to achieve a better customer appearance experience effect. This structure requires film The layer is thicker, and generally use intermediate frequency reactive sputtering to form a film, for O 2 The flow rate is very sensitive, and the refractive index of the film layer is unstable. When producing OGS products with a large size, in order to ensure the channel impedance, the film layer of the touch electrode of the sensor is required to be thicker, and the elimination effect is not good; another solution is, After the OGS functional film structure is completed, it is covered with a high-refractive-index film layer. The high-refractive-index film layer is made of silicon oxynitride material or high-refractive-index organic material. The film layer formed by the high-refractive-index organic material is not hard enough, and The thickness of the film formed by the silicon oxynitride material is thick and easy to peel off (peeling), and the single sensor cannot confirm the shadow removal effect, and the shadow removal effect can only be seen after bonding, which affects the OGS touch function and reduces the user experience effect

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