An organic light-emitting diode display screen capable of detecting pressing force and a method of manufacturing the same

A technology of light-emitting diodes and display screens, applied in semiconductor/solid-state device manufacturing, data processing input/output process, instruments, etc., can solve problems such as poor uniformity, affecting data processing efficiency, and complex data of pressure detection capacitance change , to achieve the effect of increasing the compression ratio

Inactive Publication Date: 2018-09-14
SHENZHEN FOCALTECH SYST
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AI-Extracted Technical Summary

Problems solved by technology

[0003] 1. The thickness of the air gap 94 is relatively large, and the air therein has no structural bearing capacity, and the devices on it are affected by gravity, so that the flatness of the top of the air gap 94 is poor;
[0004] 2. The uniformity of the distribution of the pressure detection capacitance C1 is a...
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Method used

[0027] The present invention proposes an organic light emitting diode Organic Light Emitting Diode display screen capable of detecting pressing force, and the organic light emitting diode Organic Light Emitting Diode display screen is referred to as an OLED display screen. As shown in FIGS. 1 to 3 , the OLED display screen includes an OLED display module 3 , a capacitive pressure sensing film 2 , and a bracket 4 . At least one electrode is arranged on the capacitive pressure sensing membrane 2 . The capacitive pressure sensing film 2 is bonded to the bracket 4, and a filler 1 with a thickness D and a maximum compression ratio R is arranged between the capacitive pressure sensing film 2 and the OLED display module 3, D>0.1 mm, R≥50%. The maximum compression ratio is the ra...
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Abstract

The invention provides an organic light-emitting diode display screen capable of detecting pressing force and a method of manufacturing the same. The organic light-emitting diode display screen comprises an organic light-emitting diode display module, a capacitance type pressure sensing film and a support. At least one electrode is arranged on the capacitance type pressure sensing film. Filler with a thickness of D and a maximum compression ratio of R is arranged between the capacitance type pressure sensing film and the organic light-emitting diode display module, wherein D is greater than 0.1mm and R is not less than 50%. With the filler, the problem in the prior art that air in an air gap has no structure bearing capability is solved; with the high compression ratio of the filler, the flatness of two poles for a pressure detection capacitor is improved.

Application Domain

Technology Topic

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  • An organic light-emitting diode display screen capable of detecting pressing force and a method of manufacturing the same
  • An organic light-emitting diode display screen capable of detecting pressing force and a method of manufacturing the same
  • An organic light-emitting diode display screen capable of detecting pressing force and a method of manufacturing the same

Examples

  • Experimental program(1)

Example

[0030] In the first embodiment of the present invention, the organic light emitting diode OLED display module 3 is an Active Matrix Organic Light Emitting Diode display module, referred to as AMOLED display module.
[0031] The second embodiment of the present invention, such as image 3 As shown, the filler 1 is a composite foam formed by layering at least two foams, that is, the composite foam is formed by layering foam 121, foam 122, foam 123,..., foam 12n, n≥2 . The manufacturing material and/or maximum compression ratio of any two foams in the composite foam are different, that is, at least one of the two characteristic data of the manufacturing material and the maximum compression ratio of each layer of foam is different to distinguish different foams . For example, two layers of foam are made of the same material, but their maximum compression ratios are different, or two layers of foam have the same maximum compression ratio, but they are made of different materials. More generally, any two layers of foam have different maximum compression ratios. The materials of manufacture and the maximum compression ratio are different. The maximum compression ratio R of the composite foam is the composite effect of each layer of foam. Regardless of the maximum compression ratio of foam 121, foam 122, foam 123,..., foam 12n, it ultimately reflects the maximum compression ratio of the composite foam. The compressed data is the maximum compression ratio R.
[0032] The present invention also provides a method for manufacturing an organic light emitting diode OLED display screen, which includes an organic light emitting diode OLED display module 3, a capacitive pressure sensing film 2, and a bracket 4. At least one electrode is provided on the capacitive pressure sensing membrane 2. The method includes the following steps:
[0033] A. Laminate the filler 1 with the thickness of D1 and the maximum compression ratio of R to the capacitive pressure sensing film 2, D1>0.1mm, R≥50%;
[0034] B. Place the capacitive pressure sensing film 2 and the filler 1 bonded together in step A between the organic light emitting diode OLED display module 3 and the bracket 4, so that the filler 1 is located on the capacitive pressure sensing film 2 Between the organic light emitting diode OLED display module 3;
[0035] C. Such as figure 2 As shown by the arrow, the organic light emitting diode OLED display module 3 is pressed against the support 4, so that the thickness of the filler 1 is pressed to D, D1>D>0.1 mm, so that the capacitive pressure sensing film 2 is affected by the filler 1 Elastic and close to the bracket 4. Obviously, it is also feasible to press the bracket 4 toward the organic light emitting diode OLED display module 3.
[0036] The first embodiment of the present invention, such as figure 1 As shown, the filler 1 is a foam 11 made of a single material.
[0037] In the first embodiment of the present invention, the organic light emitting diode OLED display module 3 is an active matrix organic light emitting diode AMOLED display module.
[0038] The second embodiment of the present invention, such as image 3 As shown, the filler 1 is a composite foam formed by layering at least two foams, that is, the composite foam is formed by layering foam 121, foam 122, foam 123,..., foam 12n, n≥2 , The manufacturing material and/or maximum compression ratio of any two foams in the composite foam are different, that is, at least one of the two characteristic data of manufacturing material and compression ratio of each layer of foam is different to distinguish different foams .
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Description & Claims & Application Information

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