Touch Operating Member Layout for Camera Viewfinder

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Solution Overview

Problem

Conventional touch operating systems for imaging apparatuses, such as digital cameras, pose difficulties in operating touch members while viewing displays on the viewfinder or upper face cover, leading to potential erroneous operations due to the layout of touch operating members.

Innovation Solution

The implementation of a touch operating member with a touch detecting face that allows for touch and slide operations, integrated with a first display unit on the rear face and a second display unit with a larger display area orthogonal to the touch operating face, positioned between the display unit and a grip portion, enabling operation without needing to view the display screen.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the touch operating member is disposed on the rear face according to conventional technology, then the device structure is simplified and manufacturing is easier, but the user cannot operate the touch operating member while viewing the display on the viewfinder or upper face cover, leading to blind-touch operations and potential erroneous operations

Engineering Contradiction:
Improveease of manufactureVSAvoidoperational accuracy
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The patent introduces a third dimension (depth/protrusion) to the rear face design. The touch operating member protrudes from the rear face surface, creating a stepped structure. This dimensional change allows the operating member to be physically accessible and visible simultaneously, enabling users to operate it while viewing other displays without blind-touch errors, while maintaining the rear-face mounting simplicity.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The protruding touch operating member acts as an intermediary element between the rear face display and the user's finger. By extending outward, it creates a separate operational zone that is both visible and tactilely accessible, mediating the interaction between the user and the device without requiring the user to shift attention between displays.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If the touch operating member is disposed on the upper face portion, then multiple shooting functions can be operated while holding the operating member, but the user must comprehend various functions set to the touch operating member to perform operations, making it difficult to operate while viewing displays on the viewfinder or upper face cover

Engineering Contradiction:
Improveoperational versatilityVSAvoidease of operation
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent applies local quality by creating a distinct protruding region on the rear face specifically for the touch operating member. This localized structural differentiation makes the operating member visually and tactilely distinct from the surrounding surface, allowing users to identify and operate it intuitively without needing to comprehend complex function assignments, thereby improving ease of operation while maintaining versatility.

Inventive Principle:
Principle #3Local quality

3Ease of operation

If the touch operating member is disposed between the first display unit and the grip portion, then the user can operate the touch operating member while viewing the display, but the device layout becomes more complex and the grip portion design is constrained

Engineering Contradiction:
Improveease of operationVSAvoidlayout complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent segments the rear face surface into distinct functional zones: the main display area, the protruding touch operating member zone, and the grip portion zone. This segmentation allows each element to be independently optimized and positioned without excessive interference with others, simplifying the overall layout planning while enabling intuitive operation with viewing capability.

Inventive Principle:
Principle #1Segmentation

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables intuitive and accurate operation of touch and slide functions while looking through the viewfinder, reducing the likelihood of erroneous operations and improving user experience by providing a clear distinction between touch detection and non-detection regions.

Implementation Method 1

capacitive arrangements are configured to detect with high precision

Methodology Applied
Scientific EffectCapacitive sensing: Capacitance

Data Source

PatentUS11012625B2Electronic equipment having a touch operating face
Publication Date: 2021.05.18 CANON KK
  • US11012625B2 patent drawing
  • US11012625B2 patent drawing
  • US11012625B2 patent drawing

AI summary

Electronic equipment includes a first operating member having a touch detecting face, a first display unit provided on a first face where the touch operating face is disposed, a second display unit configured with a larger display area than the first display unit and disposed in a direction orthogonal to a horizontal direction with regard to the touch operating face, and a grip portion configured for a user to grip. The first operating member detects a touch operation and slide operation on a touch operating face. The first operating member is disposed between the first display unit and the grip portion in the horizontal direction.